I'm testing out using the Customer Portal feature in the Method Integration so that my customers can view their invoices and account details. The feature works great, but I'd love it if I could customize this feature to be able to add payments as a feature. It looks like printing an invoice is pretty straight forward, so customers could mail in a check, but I'd like them to have the option of making credit card payments online.
I believe these are called Sales Receipts in Quickbooks, but I'm not certain. So, Is there a way to add in creation of Sales Receipts to the Customer Portal?
Thanks!