I have been trying to figure out how to accept a payment based on an email invoice. ie i do service for a customer send them an invoice via email invoice feature of ubercart, now they wish to pay however other than sending me a check there is no easy way for them to pay.
Is there someway to add a link that could take them to a checkout page or something? I have a paypal merchant a account and have set everything for ubercart in regards to that but that only works through the shopping cart not with orders and invoices. Also i have played around with uc_paypalbuttons module but not really getting anywhere there either.
Please help