Please note: this documentation page may not be relevant. This concerns specific, older, subscriptions. Please see the Subscriptions FAQ for updated details.
On occasion, store managers may find that when a customer or store manager suspends or cancels a subscription in the store the status change is not reflected at PayPal. Similarly, if a customer changes the payment method or switches a subscription that was originally purchased at PayPal, the original subscription may not be cancelled at PayPal.
This guide covers potential issues that prevent Subscriptions from synchronising with PayPal.
Incorrect PayPal API Signature
↑ Back to top- Your API Signature may be for a PayPal Sandbox account but the PayPal Sandbox is disabled in your WooCommerce settings. Or you may be using a live PayPal account’s API Signature with PayPal Sandbox enabled.
- Missing characters – sometimes PayPal API Signatures include special characters which may be missed when it is copied. Be sure to check that all the characters are entered in your WooCommerce settings page.
- PayPal provides two forms of API credentials – API Certificate and API Signature. You must use an API Signature with Subscriptions. An API Certificate will not work.
PayPal API credentials notice
↑ Back to top
Old PayPal accounts
↑ Back to topI
” followed by numbers and letters, e.g. I-nnnnnnnnnnnnnn
. Subscriptions created with old PayPal accounts start with an uppercase “S
” instead, e.g. S-nnnnnnnnnnnnnn
.
To check the PayPal Subscription ID value for your subscriptions:
- Go to the WooCommerce > Edit Subscription for a subscription using PayPal Standard as the payment method
- Check the PayPal Subscription ID value displayed under the Subscription Data > Billing Details section

Out-of-date subscription ID notice
↑ Back to top