Orphaned PayPal Subscriptions

Problem

You see the following error for a PayPal® transaction in the Activity Log at Configuration () > System Logs:

The system has detected an orphaned subscription. It is not associated with any services, nor was attributable to an invoice or client.

Cause

This message indicates that the subscription is not associated with any service, product addon, or domain in the WHMCS database for your installation. Additionally, the system could not find an alternate ID to use to identify an associated invoice or client.

Solution

If this message begins with [PAYMENT.SALE.COMPLETED] and you updated from a WHMCS version prior to WHMCS 8.7 more than 48 hours ago, there is a serious problem. The PayPal® account received payment, but WHMCS has not recorded it. Investigate the issue immediately to determine the necessary action.

If this message begins with [BILLING.SUBSCRIPTION.CREATED] and you updated from a WHMCS version prior to WHMCS 8.7 within the last 48 hours, this is a normal indicator that a user checked out using PayPal just before you upgraded. You do not need to take further action.

PayPal will end support for the legacy (deprecated) PayPal modules, including PayPal Basic and PayPal Checkout, starting in 2027. After PayPal ends support, their transactions will fail. Your customers will not be able to pay you. We strongly recommend migrating to PayPal Payments to prevent this problem.

Last modified: 2026 October 20