I am almost through the process. I’ve seen similar problems from other users, but no answers. I have my API username, password, & signature entered correctly. I have the following as my Paypal URL:
I’m not even sure if that’s right. There is nothing about this in the Paypal screencast. I’m not using a sandbag or a debug flag or a proxy. When someone checks out with Paypal Express, I get this error on the Paypal site:
Sorry - your last action could not be completed
If you were making a purchase or sending money, we recommend that you check both your PayPal account and your email for a transaction confirmation during the next day.
If you came to this page from another website, please return to that site (don’t use your browser’s Back button) and restart your activity.
If you came from PayPal’s website, click the PayPal logo in the upper-left-hand corner to return to our home page and restart your activity. You might have to log in again.
If anybody knows what I can do, please let me know. Connecting MC to Paypal has been anything but straightforward. This is pretty important as it is the last piece before taking the site live. The client wants the site live as soon as possible.