2561 This Customer Number and Contract Number combination is invalid [Solution]

When processing orders you might come across the "

2561 This Customer Number and Contract Number combination is invalid 

" error.

This error is shown when the Contract Number used in your billing account does not correspond to the Customer Number being used.

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 related to the order and error
   
    
4. Select the Carrier Options tab
   
   
5. Verify that the information entered in the Customer # and Contract ID fields match with your registration information with the carrier
   
   
   
6. Press Save to apply the changes.