I am in SandBox mode for both PayPal Express and PayPal Proflow.
I keep getting the error when trying to select USPS as my shipping option while using a valid address.
"No valid shipping options found. Please check your address carefully."
I have explored this forum first and I have confirmed the following:
- USPS username is entered correctly with no spaces
- USPS API credentials have been requested and initialized
- Max-weights, boxes and a domestic and int shipping option are all selected.
Could somebody please provide some insight as to why this error keeps appearing?