PayPal Community

Good day @foreandr    Thank you for posting to the PayPal community.   To address the issue you are facing, I would like to provide you with a detailed guide. Please refer to the link below:   https://www.paypal.com/us/cshelp/article/how-do-i-troubleshoot-instant-payment-notification-ipn-ts2082   Also, I would suggest trying it now by clearing browser cache and cookies.   If your still facing issues, please create an MTS ticket via - https://www.paypal-support.com/s/?language=en_US  with the detailed information and error details.   Sincerely, Kavya PayPal MTS   If this post or any other was helpful, please enrich the community by giving kudos or accepting it as a solution. ... View more

Hello, The thread above was from a year ago, so the original thread is no longer pinned. There are two endpoints you can use for IPN validation. https://ipnpb.sandbox.paypal.com/cgi-bin/webscr & https://www.sandbox.paypal.com/cgi-bin/webscr If one is not working for you, please try the other. The steps to follow for IPN validation can be found in this support article : https://developer.paypal.com/api/nvp-soap/ipn/IPNImplementation/#link-ipnlistenerrequestresponseflow Thanks ! ... View more