I had the same problem. After some research I found I had numerous accounts on UPS ( This happens as a result of attempting to log into UPS from Paypal . If you remember, you had two options when you attempt to ship by UPS from Paypal - give your UPS account number or create new one. You may have entered your UPS account number and got the error then tried the other option, create one. When you choose to create a new one, UPS will create a new account, even if Paypal will not allow you to use it to fund the shipment. To find if you have multiple accounts, look in your inbox email and see if UPS sent you e-mails giving you new account numbers. If so, call UPS with all the account numbers and cancel all but the one you wish to use going forward.) Hope this helps.
... View more