Can we set C3 invoice payment via auto-pay? Yes. You can provide Credit Card/ACH details and the same would be used to collect payment on system defined date. By user|2020-06-18T19:25:04+00:00May 14th, 2020| Share This Story, Choose Your Platform! facebooktwitterlinkedin About the Author: user Leave A Comment Cancel replyComment Save my name, email, and website in this browser for the next time I comment.