When your guests receive the invitation in their email, the subject line will read:
Punchbowl Invitation: *Your Event Title Here*
If you'd like to give your recipients a bit more clarity, you can update the subject line for your event on the Invitation Options
page. Turn ON the "Customize email to guests" option, click "Edit" and make any changes you'd like.
When you send your guests a text message instead of an email, they will not receive this customized message. It is only sent to guests who receive the invitation as an email.