When creating a Ticket event that includes Addons, you can create complementary emails tied directly to those addons.
Follow these steps to create an addon email template:
Click `Messages`
Click `Email`
Click `Create custom`
Create the email under `Content`
Click `Recipients`
Under Use for, select `Addons`
Under Send message to → Addon batches, select one or more addons the email should be linked to
Click `Save template`.
The email is now saved and will appear alongside other email templates marked with an Addon marker.
