--- title: "Split Email Sendout" slug: "split-email-sendout" updated: 2024-03-05T13:23:56Z published: 2024-03-05T13:23:56Z canonical: "docs.mapp.com/split-email-sendout" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.mapp.com/llms.txt > Use this file to discover all available pages before exploring further. # Split Email Sendout This Job allows you to perform A/B testing on your scheduled and recurring Whiteboards. > Available only for time-based Whiteboards. > Due to a current limitation, the filter [Email Reaction](/v1/docs/email-reaction) does not work for split messages. ## Configuration | Setting | Description | | --- | --- | | **​Date​** | These parameters set the date and time when the sendout is triggered. | | **Time** | | **Time Zone** | | **Message Type** | Choose between **Prepared** and **Draft** messages. | | **​Channel​** | For Email, this option shows​ the Email ​channel by default and is inactive for editing. | | **Sendout Time** | Choose between **Immediately** and **The Best Sendout Time**. | | **Add Test Message** | Allows you to add more test messages to the job. - By default, two test messages are set with 10% of the total audience each. - You can add more messages by pressing the ​**Add Test Message**​ button. - You can also change the percentage of the total audience reach for each of your messages. | | **Distribution** | Displays graphically how your test messages are distributed. | | **Audience Group** | Displays the Audience Group that was selected as the entry selected in the start job of the Whiteboard. | | **Test Messages** | In this section, you can select your test messages. It is possible to use both prepared and draft messages for testing. - By default, two test messages are set with 10% of the total audience each. - You can add more messages by pressing the ​**Add Test Message**​ button. - You can also change the percentage of the total audience reach for each of your messages. | | **​Main Message Sendout​** | Select the success criterion for your message. Choose between three **message selection criteria**: - Opening rate, - Click rate, or - Unsubscription rate | | **Sendout delay** | Set the delay after the test sendout is done and your best-performing message is sent. You can set the delay in minutes, hours, days, or weeks. | | **​Description​** | Optionally, add a description to your A/B test. | ## Related Topics [Test Multiple Email Message Variants (A/B Test)](/v1/docs/test-multiple-email-message-variants-ab-test)