Please use Sandbox Account Settings below if Sandbox mode is enabled.
PayPal's Instant Payment Notification (IPN) is a message service that sends real-time payment notifications to your system. It is essential for confirming transactions, automating order processing, and improving the reliability of payment handling.
You need to set the following IPN URL in your PayPal account:
How to configure in PayPal:
1. Log in to your PayPal Business account.
2. Go to Account Settings → Notifications.
3. Click Update next to Instant Payment Notification.
4. Select Choose IPN Settings.
5. Paste the above URL in the Notification URL field.
6. Enable IPN and click Save.