API endpoint and refId

[shayzalman]

I'm using the hosted iframe payment page "Accept Payment Page",
1. The response does not returning the refId (I'm sending the "setRefTransId" and get 0 in return)
2. How can define an API endpoint to get the transaction data back to the server on transaction completion?

thanks

[KateUhlerredalf]

When you initially authenticated, did you request the proper scope permissions to access the messages/inbox endpoint? That would be my guess.