(optional) If you want to send emails from Mapp Engage, go to templates in the VTEX admin page and disable sending emails for:
- [OMS] Order confirmation
- [OMS] Order canceled
- [OMS] Payment approved
- [OMS] Order invoiced
This will prevent sending duplicate emails from both Engage and VTEX. For more information see Getting Started With VTEX Plugin for Engage, section A.