Before you make your first shipment you have to add your carrier customer number(s) and other relevant information.

1. Go to Maintenance > Senders.
   
   
2. Select New sender or use the search function to find your sender.
   
   
   
   
3. Scroll down and open the Carriers section.
   
   
   
   
4. Click Add carrier.
   
   
5. Select a carrier from the Carrier dropdown menu.
   
   
6. Enter your carrier customer number in the CustNo field. Contact the carrier if you are unsure which customer number to use.
   
   
   
   
7. Enter other carrier information, if relevant or requested by the carrier.