I just tried to call the number in the PayPal account to no avail.   Effective 1/18/2017, your PayPal Payments Standard (also known as Website Payments Standard or HTML buttons) integration will be affected by updates we’re making to enhance the checkout process. We’ve identified your integration as passing either invalid or incorrect data to PayPal in one or more of your payment buttons. To ensure your payments continue to process, you’ll need to update your integration as soon as possible. If integration is not updated by 18/01/2017 you will not be able to process payments using PayPal. What’s Needed You need to update your current PayPal Standard integration to PayPal Pro and/or Express checkout.  Once you’ve updated your integration to remove any invalid or incorrect data, your customers will see the updated experience.   Talking points Why do I need to make changes? We’re enhancing our checkout experience on January 18, 2017. To continue to process transactions through your checkout, you’ll need to update your integration. What will happen if I don’t make the change? We won’t be able to process your checkout transactions. When do I need to have the change completed? We’re enhancing our checkout experience on January 18, 2017. We encourage you to adjust your integration any time before that date. How can I determine if the changes I made fixed the issue? I recommend reviewing our FAQs I integrated PayPal through my cart. How do I update my integration? Hundreds of shopping carts are pre-integrated with WPS. If you currently have PayPal enabled through one of these carts, please contact your cart provider directly. I’ve reviewed the FAQs and the documentation, but I still have questions. What resources do I have? You can contact Merchant Technical Support at https://www.PayPal.com/MTS. If you need help or have any questions, give me a call, my contact details are below.   https://www.youtube.com/watch?v=KkwZ0K1WgsQ  - How to get API credentials video.   Thank you for being a PayPal customer.   Very best regards, Sakinah           Very best regards, Sakinah     Sakinah Abdul-Ibiyeye UK & Ireland Merchant Services Direct UK 0845-3511560 Direct IRE 00353-1-4369944 PayPal (Europe) S.à r.l. & Cie, S.C.A. Société en Commandite par Actions Registered Office: 22-24 Boulevard Royal L-2449, Luxembourg RCS Luxembourg B 118 349