An A/B test measures the engagement for different subject lines for the same email with a sample of your recipients.

Step 1: After filling in your email settings, click on A/B TEST MULTIPLE SUBJECT LINES.

Step 2: Insert the subject lines you want to test, select how you want to send the winner subject line, and when to send it:

  • You can add up to 4 subject lines
  • You can decide how big the testing size should be on the slider
  • You can decide whether you want Mizy to automatically send the variation to the rest of your list that performs the best (has the highest open rate during the test) or you would like to decide manually which variation you want to send to the rest of the list
  • You can define the length of the testing period

After you set up your AB test parameter, click on “Next”

If you choose to select manually the subject line you want to send to the rest of your list:

Go to “Send Campaigns”, click on “STATISTICS” of the campaign you run an AB test on:

Select the subject line you want to send to the rest of your list and click on “Send variation

Click on “OK” to confirm your action

NOTE: To run a subject line A/B test, it's best to have at least 1,000 active contacts in your databse. 

If you have fewer than that in your list, the proportion of your list that you need to A/B test gets larger, and the contacts who will be receiving the winner subject line will be smaller.

That's it!

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