how to send a thank you email

[rocklandcider]

do i need to start a campaign to do so? or is this separate?

[JJ_]

Hello @rocklandcider 

If you would like that email to be sent from your Square Account then yes, you would need to create an email marketing campaign that matches this criterion.  Alternatively, you are able to send these emails using your personal email as well.

I hope this information is helpful!

P.S. Welcome to the Seller Community