https://wallet.gooddollar.org/?code=eyJtIjoiM2RNa3lFWjFRRkx3aTJhb1VOa2ZWNkI4WGU1czVlRncybmQiLCJhIjoyNS4zLCJyIjoiVGhlIENvbW1vbmlzdHMgTWFuaWZlc3RvIiwiY2F0IjozLCJ2ZW4iOnsiY2J1IjoiaHR0cHM6Ly9ib29rc3RvcmUueHl6L2JhY2tlbmQvcGF5bWVudGNhbGwiLCJpbmQiOiIxMjM0LXVyZyIsIndlYiI6Imh0dHBzOi8vYm9va3N0b3JlLnh5eiIsInZlbiI6IlRoZSBDb21tb25zIiwiZCI6InRoaXMgY2FuIGJlIHJlYWQgZnJvbSB0aGUgRVJDNjc3IFRyYW5zZmVyIGV2ZW50In19
POST
request to the callback url defined in the ven.cbu
field.ven.ind
fielddata
field will contain the data supplied in the extra data field, if that field is omitted or empty then it will contain the data supplied in the invoice id field. This way you can verify that the transaction matches the specific payment.