Override update, default null. Route code this shipment is associated with. Must be set up beforehand during integration phase. See "manifestNumber special considerations" in documentation.

Not patch or override: either required, or a higher priority field takes precedence. The terminal that owns the shipment. See "Duplicated fields" in documentation.

Patch update, no default (will not unassign if not provided). External identifier of the manifest. If provided, will assign shipment to that manifest.