Problem #

After a successful PayPal® transaction using the PayPal Payments module, you see the following error for the same transaction ID at Billing > Gateway Log:

Transaction ID X already exists

Cause #

After processing a PayPal Payments transaction, the system will receive a webhook request from PayPal. This second log message indicates that the system already recorded the transaction.

Solution #

This log entry does not indicate a problem. You can safely ignore it.

Last modified: October 25, 2024