I have the following error in my exception.log file:
SoapFault exception: [Client] SOAP-ERROR: Encoding: object has no 'AccountNumber' property in /var/www/html/app/code/core/Mage/Usa/Model/Shipping/Carrier/Fedex.php:1685
It gives me the error while creating a shipment label. I believe the issue is that it's the missing property AccountNumber.
What could the issue be?