AB Testing does not support operational emails. There is a work around which could be used with caution:
1. For AB testing using an operational email, edit the "communication limit settings" on the Email Batch Program setup tab and uncheck "Block Non-operational email". This will ensure the email behaves as operational email.
2. However this setting should be used with caution for non-operational emails.
Who This Solution Applies To
Those hoping to use operational emails in an email test.