Are you operating an X-Cart store with version 4.5.4 or older? There is an important API endpoint update being performed by PayPal on November 1st (this was originally scheduled for March 25th). Before this time, there is a patch that you will need to apply to ensure that you continue to receive payments via PayPal.
From PayPal: “If you have any questions, please contact PayPal Merchant Technical Services by filing a ticket; refer to LIVE API integration change in preparation for November 1. For real time system updates, please go to www.paypal.com/sitestatus”
If you want to apply the patch yourself, you can download the PayPal patch at: https://secure.x-cart.com.
If you need help applying the patch, please contact us.
