Hi Oliver,
thanks for your quick reply. ??
Yes as you can see I enabled IPN sending: https://prnt.sc/mdsk32
I also made some test-payments and PayPal says that the following IPNs were sent: https://prnt.sc/mdslm5
But I only received them: https://prnt.sc/mdslre
I added the IPN listener in the sandbox-seller-account I created and tested it with my sandbox-buyer-accounts I created. The strange thing is that it worked for a few testings. As you recommended I tested the IPN reception within my IPN simulator (as you can see in the plugin-screenshot above I already did that a few days ago and it worked) but now it also didn’t work anymore.
Do you have any idea what’s the problem here?
Thank you!