{"id":17041,"date":"2026-05-11T10:15:32","date_gmt":"2026-05-11T09:15:32","guid":{"rendered":"https:\/\/help.expertsender.com\/?post_type=es&#038;p=17041"},"modified":"2026-05-11T11:24:42","modified_gmt":"2026-05-11T10:24:42","slug":"create-and-send-a-b-test-newsletter","status":"publish","type":"es","link":"https:\/\/help.expertsender.com\/pl\/emp\/create-and-send-a-b-test-newsletter\/","title":{"rendered":"Create and send A\/B test newsletter"},"content":{"rendered":"\n<p>Creates and sends an email A\/B test newsletter.<\/p>\n\n\n\n<p>This method can be used to create:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>an&nbsp;<strong>A\/B test by content<\/strong>&nbsp;&#8211; one delivery date and multiple content versions,<\/li>\n\n\n\n<li>an&nbsp;<strong>A\/B test by date<\/strong>&nbsp;&#8211; one content version and multiple delivery dates.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"request\">Request<a href=\"#request\" class=\"not-prose content-heading-link\">#<\/a><\/h2>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#babed8;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"POST https:\/\/api.esv2.com\/v2\/Api\/AbTests\" style=\"color:#babed8;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme-palenight\" style=\"background-color: #292D3E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #BABED8\">POST https:\/\/api.esv2.com\/v2\/Api\/AbTests<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"request-data-format\">Request data format<a href=\"#request-data-format\" class=\"not-prose content-heading-link\">#<\/a><\/h2>\n\n\n\n<p>Data part of request for creating a new A\/B test newsletter.<\/p>\n\n\n\n<p>Data element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Element\/attribute<\/strong><\/td><td><strong>Type<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><tr><td>Recipients<\/td><td>complex<\/td><td>Newsletter recipients\u2019 information. Required.<\/td><\/tr><tr><td>Contents<\/td><td>array[complex]<\/td><td>Newsletter content versions. Required.<\/td><\/tr><tr><td>DeliverySettings<\/td><td>complex<\/td><td>Newsletter delivery settings. Optional.<\/td><\/tr><tr><td>WinnerSettings<\/td><td>complex<\/td><td>A\/B test winner settings. Required.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Recipients element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Element\/attribute<\/th><th>Type<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>SubscriberLists<\/td><td>array[integer]<\/td><td>Array of SubscriberList elements containing IDs of subscriber lists that newsletter will be sent to. Optional.*<\/td><\/tr><tr><td>SubscriberSegments<\/td><td>array[integer]<\/td><td>Array of SubscriberSegment elements containing IDs of subscriber segments that newsletter will be sent to. Optional.*<\/td><\/tr><tr><td>SeedLists<\/td><td>array[integer]<\/td><td>Array of SeedList elements containing IDs of seed lists used during shipment. Optional.*<\/td><\/tr><tr><td>SuppressionLists<\/td><td>array[integer]<\/td><td>Array of SuppressionList elements containing IDs of suppression lists that will be checked during shipment. Optional.<\/td><\/tr><tr><td>ExcludedLists<\/td><td>array[integer]<\/td><td>An array of SubscriberList elements containing the IDs of the subscriber lists to which the newsletter will be excluded from mailing. Optional.<\/td><\/tr><tr><td>ExcludedSegments<\/td><td>array[integer]<\/td><td>An array of SubscriberSegment elements containing the IDs of the subscriber segments to which the newsletter will be excluded from mailing. Optional.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>* Newsletter has to have at least one subscriber list, subscriber segment or seed list specified. Empty recipients element will trigger appropriate error message.<\/p>\n\n\n\n<p>Contents element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Element\/attribute<\/strong><\/td><td><strong>Type<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><tr><td>Content<\/td><td>complex<\/td><td>Newsletter content version. Required.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>The&nbsp;Contents&nbsp;collection must contain from 1&nbsp;to&nbsp;5 elements.<\/p>\n\n\n\n<p>Content element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Element\/attribute<\/strong><\/td><td><strong>Type<\/strong><\/td><td><strong>Description<\/strong><\/td><\/tr><tr><td>ContentFromUrl<\/td><td>complex<\/td><td>Information about content to load from a remote server. Optional.<\/td><\/tr><tr><td>FromName<\/td><td>string<\/td><td>Sender name. Required.<\/td><\/tr><tr><td>FromEmail<\/td><td>string<\/td><td>Sender email address. Required.<\/td><\/tr><tr><td>ReplyToName<\/td><td>string<\/td><td>Reply-to name. Optional.<\/td><\/tr><tr><td>ReplyToEmail<\/td><td>string<\/td><td>Reply-to email address. Optional.<\/td><\/tr><tr><td>Subject<\/td><td>string<\/td><td>Message subject. Required.<\/td><\/tr><tr><td>Preheader<\/td><td>string<\/td><td>Message preheader. Optional.<\/td><\/tr><tr><td>Header<\/td><td>int<\/td><td>Header template ID. Optional.<\/td><\/tr><tr><td>Footer<\/td><td>int<\/td><td>Footer template ID. Optional.<\/td><\/tr><tr><td>Html<\/td><td>string<\/td><td>HTML content. Optional.<\/td><\/tr><tr><td>Plain<\/td><td>string<\/td><td>Plain text content. Optional.<\/td><\/tr><tr><td>AmpHtml<\/td><td>string<\/td><td>AMP HTML content. Optional.<\/td><\/tr><tr><td>GoogleAnalyticsTags<\/td><td>complex<\/td><td>Google Analytics tags. Optional.<\/td><\/tr><tr><td>CustomUtms<\/td><td>array[complex]<\/td><td>Custom UTM parameters. Optional.<\/td><\/tr><tr><td>Tags<\/td><td>array[string]<\/td><td>Message tags. Optional.<\/td><\/tr><tr><td>UrlIntegrations<\/td><td>complex<\/td><td>URL integrations. Optional.<\/td><\/tr><tr><td>Attachments<\/td><td>complex<\/td><td>Message attachments. Optional.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>ContentFromUrl element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Element\/attribute<\/th><th>Type<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>Url<\/td><td>string<\/td><td>URL address of imported file. Supported protocols are HTTP, HTTPS, FTP, FTPS and SFTP. E.g. ftp:\/\/www.domain.com\/mycreative.zip<\/td><\/tr><tr><td>Username<\/td><td>string<\/td><td>Username used for authentication. Optional.<\/td><\/tr><tr><td>Password<\/td><td>string<\/td><td>Password used for authentication. Optional.<\/td><\/tr><tr><td>FtpAuth<\/td><td>string<\/td><td>Authentication method for secure FTP servers. Optional. Valid values are:<br>None &#8211; FTP server does not support secure authentication (default)<br>ExplicitTls &#8211; Explicit TLS\/SSL authentication<br>ExplicitSsl &#8211; Explicit SSL only authentication<br>ImplicitSsl &#8211; Implicit SSL authentication<\/td><\/tr><tr><td>FtpUseActiveMode<\/td><td>boolean<\/td><td>If set to &#8220;true&#8221;, active mode will be used for FTP connections. Default value is &#8220;false&#8221; &#8211; passive connection mode will be used.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>GoogleAnalyticsTags element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Element\/attribute<\/th><th>Type<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>Campaign<\/td><td>string<\/td><td>Google Analytics tag &#8220;utm_campaign&#8221;. Optional.<\/td><\/tr><tr><td>Source<\/td><td>string<\/td><td>Google Analytics tag &#8220;utm_source&#8221;. Optional.<\/td><\/tr><tr><td>Content<\/td><td>string<\/td><td>Google Analytics tag &#8220;utm_content&#8221;. Optional.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Note: The remaining tag, &#8220;utm_medium&#8221; is by default specified as &#8220;Email&#8221;.<\/p>\n\n\n\n<p>CustomUtms element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Element\/attribute<\/strong><\/th><th><strong>Type<\/strong><\/th><th><strong>Notes<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Name<\/td><td>string<\/td><td>The name of the custom UTM parameter. Maximum length: 255 characters. The name cannot be empty and must be unique.<br>Do not reuse names already reserved by Google Analytics (e.g., utm_source, utm_medium, utm_campaign, utm_term, utm_content).<\/td><\/tr><tr><td>Value<\/td><td>string<\/td><td>The value assigned to the UTM parameter. Maximum length: 255 characters. The value cannot be empty.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>UrlIntegrations element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Element\/attribute<\/th><th>Type<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>ID<\/td><td>int<\/td><td>Id number of existing, not deleted integration. Required.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Attachment element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Element\/attribute<\/th><th>Type<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>FileName<\/td><td>string<\/td><td>Attachment filename. E.g. &#8220;infosheet.pdf&#8221;. Should be unique (no 2 attachments should have the same filename). Required.<\/td><\/tr><tr><td>MimeType<\/td><td>string<\/td><td>File type according to MIME standards. E.g. &#8220;application\/pdf&#8221;. If omitted, default MIME type will be used: &#8220;application\/octet-stream&#8221;. Optional. MIME type can affect how email attachments are treated in different email clients, so it is advisable to always specify the correct type.*<\/td><\/tr><tr><td>Content<\/td><td>string<\/td><td>Attachment file content. Must be Base64 encoded.** See example requests. Required.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>DeliverySettings element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Element\/attribute<\/th><th>Type<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>DeliveryDates<\/td><td>complex<\/td><td>Delivery dates for the A\/B test. Optional. If not specified, current date and time is used.<\/td><\/tr><tr><td>TimeZone<\/td><td>string<\/td><td>Time zone used with specified delivery date. Optional. Defaults to standard (unit) settings.&nbsp;<a href=\"https:\/\/help.expertsender.com\/emp\/api\/time-zones\/\" data-type=\"es\" data-id=\"3771\">List of valid values<\/a>.<\/td><\/tr><tr><td>OverrideDeliveryCap<\/td><td>boolean<\/td><td>If set to &#8220;true&#8221;, newsletter will ignore any delivery frequency capping settings. Optional. Default is &#8220;false&#8221;.<\/td><\/tr><tr><td>ThrottlingMethod<\/td><td>string<\/td><td>Delivery throttling method. See below for description of different throttling methods. Optional. Default is &#8220;None&#8221;.<\/td><\/tr><tr><td>ManualThrottlingTime<\/td><td>int<\/td><td>Time (in hours) of manual delivery throttling. This setting is required if ThrottlingMethod was set to &#8220;Manual&#8221; and ignored in other cases.<\/td><\/tr><tr><td>TimeOptimizationPeriod<\/td><td>string<\/td><td>Time of delivery for Sending Time Optimization (STO). This setting is only used if ThrottlingMethod was set to &#8220;TimeOptimized&#8221; and is ignored in other cases.<br>Valid values are: &#8220;24h&#8221; (24 hours &#8211; default) and &#8220;7d&#8221; (7 days).<\/td><\/tr><tr><td>Channels<\/td><td>array[complex]<\/td><td>Array of Channel elements describing delivery channels. Optional. If omitted, standard (unit) channel settings will be used to deliver the newsletter.<\/td><\/tr><tr><td>EnableOpenTrack<\/td><td>boolean<\/td><td>Indicates whether open tracking is enabled. Optional. Default value: true.<\/td><\/tr><tr><td>EnableClickTrack<\/td><td>boolean<\/td><td>Indicates whether click tracking is enabled. Optional. Default value: true.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>DeliveryDates element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Element\/attribute<\/strong><\/td><td><strong>Type<\/strong><\/td><td><strong>Notes<\/strong><\/td><\/tr><tr><td>Date<\/td><td>datetime<\/td><td>Delivery date for the A\/B test. Required.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>For an&nbsp;<strong>A\/B test by content<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Contents must contain more than one content version,<\/li>\n\n\n\n<li>DeliveryDates must contain exactly one date,<\/li>\n\n\n\n<li>if&nbsp;DeliveryDates&nbsp;is not provided, current date and time is used.<\/li>\n<\/ul>\n\n\n\n<p>For an&nbsp;<strong>A\/B test by date<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Contents&nbsp;must contain exactly one content version,<\/li>\n\n\n\n<li>DeliveryDates&nbsp;must contain from&nbsp;2&nbsp;to 5 dates,<\/li>\n\n\n\n<li>WinnerPickMethod&nbsp;must be set to&nbsp;Manual.<\/li>\n<\/ul>\n\n\n\n<p>Channels element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Element\/attribute<\/th><th>Type<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>Ip<\/td><td>string<\/td><td>Delivery channel IP address.<\/td><\/tr><tr><td>Percentage<\/td><td>integer<\/td><td>Portion (%) of emails that will be sent using this delivery channel.*<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>The sum of all&nbsp;Percentage&nbsp;values must equal&nbsp;100.<\/p>\n\n\n\n<p>WinnerSetting element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Element\/attribute<\/strong><\/td><td><strong>Type<\/strong><\/td><td><strong>Notes<\/strong><\/td><\/tr><tr><td>TestGroupsSize<\/td><td>integer<\/td><td>Percentage of recipients assigned to test groups. Required.<\/td><\/tr><tr><td>WinnerPickMethod<\/td><td>string<\/td><td>Method used to select the winning version. Available options are listed later in the documentation. Required.<\/td><\/tr><tr><td>SendWinnerAfterHours<\/td><td>integer<\/td><td>Number of hours after which the winning version should be sent. Used for winner selection methods other than Manual. Optional.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>ThrottlingMethod element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Name<\/th><th>Behavior<\/th><\/tr><\/thead><tbody><tr><td>None<\/td><td>Delivery will not be throttled. Newsletter will be sent as quickly as possible. This is a default method, but not recommended for delivering large volumes.<\/td><\/tr><tr><td>Auto<\/td><td>Automatic throttling. Delivery time will be automatically calculated, depending on number of recipients and unit settings.<\/td><\/tr><tr><td>Manual<\/td><td>Manual throttling. Delivery time is specified manually as a number of hours the whole delivery will take.<\/td><\/tr><tr><td>TimeOptimized<\/td><td>Sending Time Optimization (STO). Date of delivery will be calculated for each subscriber based on their previous performance over the next 24h\/7d.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>TimeTravel&nbsp;is not supported for A\/B tests.<\/p>\n\n\n\n<p>WinnerPickMethod element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Name<\/strong><\/td><td><strong>Behavior<\/strong><\/td><\/tr><tr><td>OpenRate<\/td><td>Winning version is selected based on open rate.<\/td><\/tr><tr><td>ClickRate<\/td><td>Winning version is selected based on click rate.<\/td><\/tr><tr><td>GoalRate<\/td><td>Winning version is selected based on goal rate.<\/td><\/tr><tr><td>GoalValue<\/td><td>Winning version is selected based on goal value.<\/td><\/tr><tr><td>Manual<\/td><td>Winning version is selected manually.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"response\">Response<a href=\"#response\" class=\"not-prose content-heading-link\">#<\/a><\/h2>\n\n\n\n<p>Returns the ID of the created newsletter and IDs of all created content versions.<\/p>\n\n\n\n<p>Response data format:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Element\/attribute<\/strong><\/td><td><strong><strong><strong>Type<\/strong><\/strong><\/strong><\/td><td><strong>Notes<\/strong><\/td><\/tr><tr><td>NewsletterId<\/td><td>integer<\/td><td>ID of the created A\/B test newsletter.<\/td><\/tr><tr><td>VersionIds<\/td><td>complex<\/td><td>IDs of created content versions.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>VersionIds element children:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Element\/attribute<\/strong><\/td><td><strong><strong>Type<\/strong><\/strong><\/td><td><strong>Notes<\/strong><\/td><\/tr><tr><td>VersionId<\/td><td>integer<\/td><td>Created content version ID.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" class=\"wp-block-heading\" id=\"examples\">Examples<a href=\"#examples\" class=\"not-prose content-heading-link\">#<\/a><\/h2>\n\n\n\n<p><strong>A\/B test by content.<\/strong><\/p>\n\n\n\n<p>Request in XML format:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#babed8;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"&lt;ApiRequest&gt;\n  &lt;ApiKey&gt;test_api_key&lt;\/ApiKey&gt;\n  &lt;Data&gt;\n    &lt;Recipients&gt;\n      &lt;SubscriberLists&gt;\n        &lt;SubscriberList&gt;13689&lt;\/SubscriberList&gt;\n        &lt;SubscriberList&gt;89&lt;\/SubscriberList&gt;\n      &lt;\/SubscriberLists&gt;\n      &lt;SubscriberSegments&gt;\n        &lt;SubscriberSegment&gt;6614&lt;\/SubscriberSegment&gt;\n      &lt;\/SubscriberSegments&gt;\n      &lt;SeedLists&gt;\n        &lt;SeedList&gt;13685&lt;\/SeedList&gt;\n      &lt;\/SeedLists&gt;\n      &lt;SuppressionLists&gt;\n        &lt;SuppressionList&gt;1012&lt;\/SuppressionList&gt;\n      &lt;\/SuppressionLists&gt;\n    &lt;\/Recipients&gt;\n    &lt;Contents&gt;\n      &lt;Content&gt;\n        &lt;FromName&gt;AB Test From 1&lt;\/FromName&gt;\n        &lt;FromEmail&gt;sender@example.com&lt;\/FromEmail&gt;\n        &lt;ReplyToName&gt;Reply 1&lt;\/ReplyToName&gt;\n        &lt;ReplyToEmail&gt;reply1@example.com&lt;\/ReplyToEmail&gt;\n        &lt;Subject&gt;AB Test Subject A&lt;\/Subject&gt;\n        &lt;Preheader&gt;Preheader A&lt;\/Preheader&gt;\n        &lt;Header&gt;3&lt;\/Header&gt;\n        &lt;Footer&gt;1&lt;\/Footer&gt;\n        &lt;Html&gt;&lt;![CDATA&#91;&lt;html&gt;&lt;body&gt;HTML A&lt;\/body&gt;&lt;\/html&gt;&#93;]&gt;&lt;\/Html&gt;\n        &lt;Plain&gt;Plain A&lt;\/Plain&gt;\n        &lt;AmpHtml&gt;&lt;![CDATA&#91;&lt;amp&gt;AMP A&lt;\/amp&gt;&#93;]&gt;&lt;\/AmpHtml&gt;\n        &lt;GoogleAnalyticsTags&gt;\n          &lt;Campaign&gt;spring_sale&lt;\/Campaign&gt;\n          &lt;Content&gt;cta_a&lt;\/Content&gt;\n          &lt;Source&gt;newsletter&lt;\/Source&gt;\n          &lt;Medium&gt;email&lt;\/Medium&gt;\n        &lt;\/GoogleAnalyticsTags&gt;\n        &lt;CustomUtms&gt;\n          &lt;CustomUtm&gt;\n            &lt;Name&gt;utm_term1&lt;\/Name&gt;\n            &lt;Value&gt;shoes&lt;\/Value&gt;\n          &lt;\/CustomUtm&gt;\n          &lt;CustomUtm&gt;\n            &lt;Name&gt;utm_term2&lt;\/Name&gt;\n            &lt;Value&gt;shirts&lt;\/Value&gt;\n          &lt;\/CustomUtm&gt;\n        &lt;\/CustomUtms&gt;\n        &lt;Tags&gt;\n          &lt;Tag&gt;promo&lt;\/Tag&gt;\n          &lt;Tag&gt;ab-test&lt;\/Tag&gt;\n        &lt;\/Tags&gt;\n        &lt;UrlIntegrations&gt;\n          &lt;UrlIntegration&gt;\n            &lt;Id&gt;1&lt;\/Id&gt;\n          &lt;\/UrlIntegration&gt;\n          &lt;UrlIntegration&gt;\n            &lt;Id&gt;3&lt;\/Id&gt;\n          &lt;\/UrlIntegration&gt;\n        &lt;\/UrlIntegrations&gt;\n        &lt;Attachments&gt;\n          &lt;Attachment&gt;\n            &lt;FileName&gt;brochure.pdf&lt;\/FileName&gt;\n            &lt;MimeType&gt;application\/pdf&lt;\/MimeType&gt;\n            &lt;Content&gt;AAECAw==&lt;\/Content&gt;\n          &lt;\/Attachment&gt;\n        &lt;\/Attachments&gt;\n      &lt;\/Content&gt;\n      &lt;Content&gt;\n        &lt;FromName&gt;Example Sender B&lt;\/FromName&gt;\n        &lt;FromEmail&gt;sender_b@example.com&lt;\/FromEmail&gt;\n        &lt;Subject&gt;AB Test Subject B&lt;\/Subject&gt;\n        &lt;Html&gt;&lt;![CDATA&#91;&lt;html&gt;&lt;body&gt;HTML B&lt;\/body&gt;&lt;\/html&gt;&#93;]&gt;&lt;\/Html&gt;\n        &lt;Plain&gt;Plain B&lt;\/Plain&gt;\n      &lt;\/Content&gt;\n      &lt;Content&gt;\n        &lt;FromName&gt;Example Sender C&lt;\/FromName&gt;\n        &lt;FromEmail&gt;sender_c@example.com&lt;\/FromEmail&gt;\n        &lt;Subject&gt;AB Test Subject C&lt;\/Subject&gt;\n        &lt;Html&gt;&lt;![CDATA&#91;&lt;html&gt;&lt;body&gt;HTML C&lt;\/body&gt;&lt;\/html&gt;&#93;]&gt;&lt;\/Html&gt;\n        &lt;Plain&gt;Plain C&lt;\/Plain&gt;\n      &lt;\/Content&gt;\n    &lt;\/Contents&gt;\n    &lt;DeliverySettings&gt;\n      &lt;TimeZone&gt;Central European Standard Time&lt;\/TimeZone&gt;\n      &lt;OverrideDeliveryCap&gt;false&lt;\/OverrideDeliveryCap&gt;\n      &lt;ThrottlingMethod&gt;None&lt;\/ThrottlingMethod&gt;\n      &lt;DeliveryDates&gt;\n        &lt;Date&gt;2026-04-24T12:30:00Z&lt;\/Date&gt;\n      &lt;\/DeliveryDates&gt;\n      &lt;EnableOpenTrack&gt;true&lt;\/EnableOpenTrack&gt;\n      &lt;EnableClickTrack&gt;true&lt;\/EnableClickTrack&gt;\n    &lt;\/DeliverySettings&gt;\n    &lt;WinnerSettings&gt;\n      &lt;TestGroupsSize&gt;50&lt;\/TestGroupsSize&gt;\n      &lt;WinnerPickMethod&gt;OpenRate&lt;\/WinnerPickMethod&gt;\n      &lt;SendWinnerAfterHours&gt;2&lt;\/SendWinnerAfterHours&gt;\n    &lt;\/WinnerSettings&gt;\n  &lt;\/Data&gt;\n&lt;\/ApiRequest&gt;\" style=\"color:#babed8;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme-palenight\" style=\"background-color: #292D3E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ApiRequest<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ApiKey<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">test_api_key<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ApiKey<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Data<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Recipients<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SubscriberLists<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SubscriberList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">13689<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SubscriberList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SubscriberList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">89<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SubscriberList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SubscriberLists<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SubscriberSegments<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SubscriberSegment<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">6614<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SubscriberSegment<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SubscriberSegments<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SeedLists<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SeedList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">13685<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SeedList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SeedLists<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SuppressionLists<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SuppressionList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">1012<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SuppressionList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SuppressionLists<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Recipients<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Contents<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FromName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">AB Test From 1<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FromName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FromEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">sender@example.com<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FromEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ReplyToName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Reply 1<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ReplyToName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ReplyToEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">reply1@example.com<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ReplyToEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Subject<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">AB Test Subject A<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Subject<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Preheader<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Preheader A<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Preheader<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Header<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">3<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Header<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Footer<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">1<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Footer<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Html<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #89DDFF\">&lt;![CDATA&#91;<\/span><span style=\"color: #C3E88D\">&lt;html&gt;&lt;body&gt;HTML A&lt;\/body&gt;&lt;\/html&gt;<\/span><span style=\"color: #89DDFF\">&#93;]&gt;<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Html<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Plain<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Plain A<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Plain<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">AmpHtml<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #89DDFF\">&lt;![CDATA&#91;<\/span><span style=\"color: #C3E88D\">&lt;amp&gt;AMP A&lt;\/amp&gt;<\/span><span style=\"color: #89DDFF\">&#93;]&gt;<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">AmpHtml<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">GoogleAnalyticsTags<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Campaign<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">spring_sale<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Campaign<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">cta_a<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Source<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">newsletter<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Source<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Medium<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">email<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Medium<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">GoogleAnalyticsTags<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">CustomUtms<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">CustomUtm<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Name<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">utm_term1<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Name<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Value<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">shoes<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Value<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">CustomUtm<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">CustomUtm<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Name<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">utm_term2<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Name<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Value<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">shirts<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Value<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">CustomUtm<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">CustomUtms<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Tags<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Tag<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">promo<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Tag<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Tag<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">ab-test<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Tag<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Tags<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">UrlIntegrations<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">UrlIntegration<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Id<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">1<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Id<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">UrlIntegration<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">UrlIntegration<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Id<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">3<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Id<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">UrlIntegration<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">UrlIntegrations<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Attachments<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Attachment<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FileName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">brochure.pdf<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FileName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">MimeType<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">application\/pdf<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">MimeType<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">            <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">AAECAw==<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">          <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Attachment<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Attachments<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FromName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Example Sender B<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FromName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FromEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">sender_b@example.com<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FromEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Subject<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">AB Test Subject B<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Subject<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Html<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #89DDFF\">&lt;![CDATA&#91;<\/span><span style=\"color: #C3E88D\">&lt;html&gt;&lt;body&gt;HTML B&lt;\/body&gt;&lt;\/html&gt;<\/span><span style=\"color: #89DDFF\">&#93;]&gt;<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Html<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Plain<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Plain B<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Plain<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FromName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Example Sender C<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FromName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FromEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">sender_c@example.com<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FromEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Subject<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">AB Test Subject C<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Subject<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Html<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #89DDFF\">&lt;![CDATA&#91;<\/span><span style=\"color: #C3E88D\">&lt;html&gt;&lt;body&gt;HTML C&lt;\/body&gt;&lt;\/html&gt;<\/span><span style=\"color: #89DDFF\">&#93;]&gt;<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Html<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Plain<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Plain C<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Plain<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Contents<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">DeliverySettings<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">TimeZone<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Central European Standard Time<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">TimeZone<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">OverrideDeliveryCap<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">false<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">OverrideDeliveryCap<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ThrottlingMethod<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">None<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ThrottlingMethod<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">DeliveryDates<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Date<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">2026-04-24T12:30:00Z<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Date<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">DeliveryDates<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">EnableOpenTrack<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">true<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">EnableOpenTrack<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">EnableClickTrack<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">true<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">EnableClickTrack<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">DeliverySettings<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">WinnerSettings<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">TestGroupsSize<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">50<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">TestGroupsSize<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">WinnerPickMethod<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">OpenRate<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">WinnerPickMethod<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SendWinnerAfterHours<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">2<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SendWinnerAfterHours<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">WinnerSettings<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Data<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ApiRequest<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>Response:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#babed8;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"&lt;ApiResponse&gt;\n  &lt;NewsletterId&gt;125269&lt;\/NewsletterId&gt;\n  &lt;VersionIds&gt;\n    &lt;VersionId&gt;206284&lt;\/VersionId&gt;\n    &lt;VersionId&gt;206285&lt;\/VersionId&gt;\n    &lt;VersionId&gt;206286&lt;\/VersionId&gt;\n  &lt;\/VersionIds&gt;\n&lt;\/ApiResponse&gt;\" style=\"color:#babed8;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme-palenight\" style=\"background-color: #292D3E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ApiResponse<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">NewsletterId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">125269<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">NewsletterId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">VersionIds<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">206284<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">206285<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">206286<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">VersionIds<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ApiResponse<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p><strong>A\/B test by date.<\/strong><\/p>\n\n\n\n<p>Request:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#babed8;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"&lt;ApiRequest&gt;\n  &lt;ApiKey&gt;test_api_key&lt;\/ApiKey&gt;\n  &lt;Data&gt;\n    &lt;Recipients&gt;\n      &lt;SubscriberLists&gt;\n        &lt;SubscriberList&gt;13689&lt;\/SubscriberList&gt;\n      &lt;\/SubscriberLists&gt;\n    &lt;\/Recipients&gt;\n    &lt;Contents&gt;\n      &lt;Content&gt;\n        &lt;FromName&gt;AB test sender&lt;\/FromName&gt;\n        &lt;FromEmail&gt;sender@example.com&lt;\/FromEmail&gt;\n        &lt;Subject&gt;AB test by date&lt;\/Subject&gt;\n        &lt;Html&gt;&lt;![CDATA&#91;&lt;html&gt;&lt;body&gt;HTML&lt;\/body&gt;&lt;\/html&gt;&#93;]&gt;&lt;\/Html&gt;\n        &lt;Plain&gt;Plain&lt;\/Plain&gt;\n      &lt;\/Content&gt;\n    &lt;\/Contents&gt;\n    &lt;DeliverySettings&gt;\n      &lt;TimeZone&gt;Central European Standard Time&lt;\/TimeZone&gt;\n      &lt;ThrottlingMethod&gt;None&lt;\/ThrottlingMethod&gt;\n      &lt;DeliveryDates&gt;\n        &lt;Date&gt;2026-04-24T10:00:00Z&lt;\/Date&gt;\n        &lt;Date&gt;2026-04-24T14:00:00Z&lt;\/Date&gt;\n      &lt;\/DeliveryDates&gt;\n      &lt;EnableOpenTrack&gt;true&lt;\/EnableOpenTrack&gt;\n      &lt;EnableClickTrack&gt;true&lt;\/EnableClickTrack&gt;\n    &lt;\/DeliverySettings&gt;\n    &lt;WinnerSettings&gt;\n      &lt;TestGroupsSize&gt;50&lt;\/TestGroupsSize&gt;\n      &lt;WinnerPickMethod&gt;Manual&lt;\/WinnerPickMethod&gt;\n      &lt;SendWinnerAfterHours&gt;2&lt;\/SendWinnerAfterHours&gt;\n    &lt;\/WinnerSettings&gt;\n  &lt;\/Data&gt;\n&lt;\/ApiRequest&gt;\" style=\"color:#babed8;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme-palenight\" style=\"background-color: #292D3E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ApiRequest<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ApiKey<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">test_api_key<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ApiKey<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Data<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Recipients<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SubscriberLists<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SubscriberList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">13689<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SubscriberList<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SubscriberLists<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Recipients<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Contents<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FromName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">AB test sender<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FromName<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">FromEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">sender@example.com<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">FromEmail<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Subject<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">AB test by date<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Subject<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Html<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #89DDFF\">&lt;![CDATA&#91;<\/span><span style=\"color: #C3E88D\">&lt;html&gt;&lt;body&gt;HTML&lt;\/body&gt;&lt;\/html&gt;<\/span><span style=\"color: #89DDFF\">&#93;]&gt;<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Html<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Plain<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Plain<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Plain<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Content<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Contents<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">DeliverySettings<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">TimeZone<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Central European Standard Time<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">TimeZone<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ThrottlingMethod<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">None<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ThrottlingMethod<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">DeliveryDates<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Date<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">2026-04-24T10:00:00Z<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Date<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">        <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">Date<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">2026-04-24T14:00:00Z<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Date<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">DeliveryDates<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">EnableOpenTrack<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">true<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">EnableOpenTrack<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">EnableClickTrack<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">true<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">EnableClickTrack<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">DeliverySettings<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">WinnerSettings<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">TestGroupsSize<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">50<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">TestGroupsSize<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">WinnerPickMethod<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">Manual<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">WinnerPickMethod<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">      <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">SendWinnerAfterHours<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">2<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">SendWinnerAfterHours<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">WinnerSettings<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">Data<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ApiRequest<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>Response:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#babed8;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span role=\"button\" tabindex=\"0\" data-code=\"&lt;ApiResponse&gt;\n  &lt;NewsletterId&gt;125270&lt;\/NewsletterId&gt;\n  &lt;VersionIds&gt;\n    &lt;VersionId&gt;206287&lt;\/VersionId&gt;\n    &lt;VersionId&gt;206288&lt;\/VersionId&gt;\n  &lt;\/VersionIds&gt;\n&lt;\/ApiResponse&gt;\" style=\"color:#babed8;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M4.5 12.75l6 6 9-13.5\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M16.5 8.25V6a2.25 2.25 0 00-2.25-2.25H6A2.25 2.25 0 003.75 6v8.25A2.25 2.25 0 006 16.5h2.25m8.25-8.25H18a2.25 2.25 0 012.25 2.25V18A2.25 2.25 0 0118 20.25h-7.5A2.25 2.25 0 018.25 18v-1.5m8.25-8.25h-6a2.25 2.25 0 00-2.25 2.25v6\"><\/path><\/svg><\/span><pre class=\"shiki material-theme-palenight\" style=\"background-color: #292D3E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">ApiResponse<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">NewsletterId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">125270<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">NewsletterId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">VersionIds<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">206287<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">    <\/span><span style=\"color: #89DDFF\">&lt;<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><span style=\"color: #BABED8\">206288<\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">VersionId<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #BABED8\">  <\/span><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">VersionIds<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #89DDFF\">&lt;\/<\/span><span style=\"color: #F07178\">ApiResponse<\/span><span style=\"color: #89DDFF\">&gt;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p><\/p>\n","protected":false},"author":13,"featured_media":0,"parent":0,"menu_order":0,"template":"","format":"standard","emp-category":[208],"class_list":["post-17041","es","type-es","status-publish","format-standard","hentry","emp-category-api-2"],"acf":[],"_links":{"self":[{"href":"https:\/\/help.expertsender.com\/pl\/wp-json\/wp\/v2\/es\/17041","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/help.expertsender.com\/pl\/wp-json\/wp\/v2\/es"}],"about":[{"href":"https:\/\/help.expertsender.com\/pl\/wp-json\/wp\/v2\/types\/es"}],"author":[{"embeddable":true,"href":"https:\/\/help.expertsender.com\/pl\/wp-json\/wp\/v2\/users\/13"}],"version-history":[{"count":7,"href":"https:\/\/help.expertsender.com\/pl\/wp-json\/wp\/v2\/es\/17041\/revisions"}],"predecessor-version":[{"id":17098,"href":"https:\/\/help.expertsender.com\/pl\/wp-json\/wp\/v2\/es\/17041\/revisions\/17098"}],"wp:attachment":[{"href":"https:\/\/help.expertsender.com\/pl\/wp-json\/wp\/v2\/media?parent=17041"}],"wp:term":[{"taxonomy":"emp-category","embeddable":true,"href":"https:\/\/help.expertsender.com\/pl\/wp-json\/wp\/v2\/emp-category?post=17041"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}