Currently working as designed - The $0 Invoices are not sent to the contact. My Use case : I have a free trial followed by 3 monthly payments. The invoice has what I need in the system, (Product, Trial, Payment Plan) but the system will not send it. I tried creating a custom invoice but it does not have access (merge) to Plan: and Payment Plan; variables. After the customer gives me their cc information by submitting the order
I can start an automation to send them an email that says you will get a confirmation soon. and have the system assign a task to me to remind me to manually go to the invoice and manually send it.
Maybe the system could add a note to $0 invoices, "this is to confirm your order"