Tracking numbers and labels are generated from the Bags By Day report (Reports section), not from the Bag Types or Delivery Routes pages:

1. Open the report for the delivery date you want to ship and make sure your FedEx account, service type and label settings are filled in under Client Config > Business: Website > Fedex.
2. Select the bags you want to ship (only bags on a delivery route tagged FedEx are actually processed — others are skipped).
3. Click Generate Carrier Labels (this button only shows if the FedEx module is enabled). Sprwt calls the FedEx ship service using each bag's shipping details, packaging type and any FedEx settings on its bag type (dry-ice weight, insured value, special services), and requests a shipping label.
4. On success, each bag gets a FedEx tracking number and a saved label file you can print or download.

If FedEx returns an error the bag is skipped and the error is shown so you can fix the address or account settings and try again.