If you were using VeriSign PayFlow, you should have received notification from Paypal that the service would no longer be supported, following a software development kit (SDK) update. The notice stems from PayPal’s acquisition of VeriSign, almost four years ago. We had maintained the pre-existing VeriSign integration but support for it will expire on January 4, 2010.
To ensure continuity, we have moved your webstore to the new service. When you next log in to the WebStore Manager, on your Payments configuration page, you will notice the service has been renamed to PayPal PayFlow. As part of PayPal’s upgrade requirements, we added support for the new service and automatically migrated your account details to it, at no cost to you.