Create your first message with your control subject line and content settings

Copy that message in the draft messages list by selecting the icon with 3 dots next to the pencil on the left and clicking copy.

Replace the subject line with the next one generated by Phrasee

Repeat these steps for all subject lines generated by Phrasee

Once all of the messages have been created, tick the boxes next to them and select the "Split send out" button at the bottom of the list

On the split send out configuration screen, select your audience and configure the split sizes using Phrasee's recommendation.

Select the time and date to send the split test

Select the time and date to send the winner, we recommend at least 4 hours. You can send the winner automatically and this should be based on the highest open rate.

Click "Check split send out" to review your settings and then you're good to schedule the split test.