Hello Cassandre,
For some of our events, we accept both CC and Offline payment (invoice) and we use the Logic tags in the Registration Confirmation email to distinguish between the two payment options. Here is a very rudimentary custom logic for an example.
{%IF: EVALUATE({[C-PAYMENT METHOD TYPE]}) EQUAL_TO "Online" %}Thank your payment and you are registered{%ELSE%}You are registered and will be receiving your invoice shortly.{%ENDIF%}
We also send out invoices automatically to those who have a balance greater than zero.
Hope that helps and gives you an idea for your use case.
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James Rose | Senior Web Developer and Platform/Product Manager
Digital Infrastructure
Office of University Development | University of Michigan
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