I have this Order ID that I want to add to each payment process, but right now, I'm already using the desc field for the product name. I notice that there are a bunch of notes that can be added (including IP address) into the transaction ID (in Alipay). Where can I add this order ID to the button/payment process?
Angela
Edit: in addition, how do I make sure that order ID is included in the return URL? Where can I configure a landing page when user returns from the gateway?