Alternative Identifiers (Alt IDs) help both Shippers and Carriers prevent allocation failures when the identifier used in a transport (for example a trailer number, truck number, or fleet ID) does not match the integrated license plate format.
Carriers can add up to 3 Alt IDs per vehicle in Vehicle Management, which allows Visibility to:
Recognize internal IDs: Match allocations and lookups using the Alt ID your team uses day to day.
Map to the correct vehicle: Automatically connect the Alt ID to the underlying integrated license plate record.
Reduce manual work: Avoid troubleshooting and workarounds caused by formatting differences and mismatches.
For larger fleets, you can add Alt IDs to many vehicles at once. In Vehicle Management → Dedicated vehicles, click Import alternative IDs, download the Excel template, add the new IDs, and upload an XLSX or CSV file. Bulk import adds Alt IDs; it does not remove existing ones. The same rules apply (maximum 3 per vehicle, unique IDs, asset owner only).
Ready to start? Ask your carriers to add the IDs you allocate with (or add them to your fleet if you are the asset owner).
For full details, including rules, limitations, bulk import steps, and how to fix errors, please see the Help Center article here: Alternative Identifiers (Alt IDs)