Hello,
I'm a developer of a WordPress plugin that it has PayPal as a payment method. Everything worked these years correctly, but suddenly PayPal Sandbox is not working anymore (I wonder if there is the same issue with live transactions - didn't test it yet).
I use this implementation:
https://developer.paypal.com/api/nvp-soap/ipn/IPNImplementation/#ipn-listener-request-response-flow
This is what happens:
1. User books a room on my website (it is a hotel plugin)
2. It is redirected to PayPal as always
3. After the payment, there's not an automatic redirection (there was and nothing has changed in my code)
4. So the user must return manually to my website
5. No IPN response from PayPal is triggered
6. If I login in PayPal Developer, I cannot see any log or event. History is empty.
7. But I see that the funding of the merchant and buyer sandbox accounts are changed
So the question is: has Sandbox stopped to send IPN events?
Again: nothing has changed in the source code of my plugin. PayPal related code has been like this for years.
