I just integrated REST API apps, but I tested to make a purchase, my debit card had no funds. Still that, Paypal redirect to me to the thank you Page. Also, the report of this transaction not appear in my dashboard. My developer says that there is no settings for that.
I don't see the transaction in my dashboard, so is not marked like failed or pending or something. I'm sure there is a bug in the code. I'm using Express Checkout / Payments REST API. Apparently the problem is: my integration is not detecting correctly the calls and PayPal is not processing the payments. I also, don't received any email from PayPal about that transaction.
Which part of the integration could be wrong? Because I need to tell my developer to fix it.