If the CN is not getting attached to the Triplog despite verifying the vehicle and route details, the issue may be related to the date validation.

The most common reason is that the CN date has exceeded the allowed date range defined by the system setting TripCnAdjustedDay. This parameter limits how many days back a CN can be attached to a Triplog.

Resolution Steps:

1. Verify the TripCnAdjustedDay configuration setting.

2. Check the CN Date against the Triplog date to ensure it falls within the permissible range.

3. If needed, adjust the TripCnAdjustedDay value through configuration.