What does "The Shippers shipper number cannot be used for the shipment" mean?
There are 3 potential causes to this UPS error
- Confirm that the 'from address' matches the address you have set in your UPS account.
- Make sure that your Shipper Number is connected to your ups.com account. (See steps here)
- Log into your UPS account, or call your UPS rep and check that your account has not been suspended.