How do you handle eCheck payments from B2B customers?
We have a customer/business that is willing to pay their invoices by eCheck. They will do multiple orders with us each month but the invoice amounts will be different, so the reoccurring authorization form is not appropriate. All of the standard one time eCheck authorization forms have a field for Amount. Do they have to send a signed auth for each sale with that amount on it? Or is there another way to do it so they just sign once? We want to make it easy to pay us, not a pain in the butt.