To resolve the "Route is mandatory" message on the 948 form when adding a new party route, please ensure the following steps are followed:

• First, select a route from the available options.

• Once a route is selected, the From Place, To Place, and other related fields will be populated automatically based on the Route Master data.
• If you need to make any modifications to these pre-populated fields, please do so before adding the route.

By correctly selecting and configuring the route details, you should not encounter any further issues.