I'm developing merchant system. Anyone could reg and start to sell. This seller fills email during registration. I'm trying to implement checkout using paypal sdk in asp.net.
I've tried "Buy now" button, but I can't handle transaction result. I need to know transaction result. Is there any way to do Express Checkout, without seller api Credentials porviding only seller email?
Btw, I know about Accelerated Boarding for Express Checkout, but it does't work for some reasons. Documentation says: "– Subject field: Merchant’s email address – API credentials fields: Leave empty " In this way I got an exception.
What am I doing wrong? I know the truth is out of there, because sites like bonanzle.com do this.