How to add vehicle number in delivery challan on mobile?

After following these steps, the vehicle number field will appear to enter the vehicle number while creating the delivery challan.

Step 1: Please go to More>>Document Settings.

Step 2: Click on Manage Custom Headers.

Step 3: Click on add new.

Step 4: Enter title as Vehicle number>>Select Document type as delivery challan>>“Turn on” Show in Document>>Save.