Sender phoneNumber Required Express mail requires the sender phone number [Solution]

When processing an order, you might come across the "Operation returned an invalid status code 'InternalServerError'
{"status":"error","error_code":"shipment.ship_errors","error_message":"Ship errors: {:code=\u003e\"1021145\", :error=\u003e\"Sender phoneNumber Required Express mail requires the sender phone number.\"}”}" error.

This error relates to an incomplete Billing Account setup at the Client level.

Feel free to follow the step-by-step guide written below or the video guide, as you prefer:

To solve this issue you will have to:

1. Access Clients under the Maintenance menu
   
   
   
   
2. Click on the client related to the order
   
   
3. Edit the Billing Account (Carrier) related to the order and error
   
   
   
   
4. Select the Carrier Options tab
   
   
5. Verify that the information entered in the Paid by Customer # and Contract ID fields match with your registration information with the carrier
   
   
6. Press Save to apply the changes

Once ready, if the rest of the information in the order is correct, you will be able to Process or Process & Print.