I'm having problems on sandbox.paypal.com login with my test accounts since they've changed the interface.
I was forced to create a new account on developer.paypal.com (which is now a beta) and import my old test accounts. I've done that but none of the accounts work anymore!
I cannot login the sandbox with my merchant account and purchases aren't working.
Anyone has the same problem?
Once you validate and log in using your PayPal credentials, you can import your individual sandbox profiles. Prior to logging in to a specific sandbox account, you will have to clear your browser cache and cookies. I was having the same issue with both Chrome and Firefox. After clearing cache/cookies, I was able to log into to a sandbox profile without any issues.
If you do not clear C&C, you will receive the following error:
"This Sandbox email address is not available. Please enter another email address."
Thanks,