Who Uses LPNs? Roles and People Behind License Plate Numbers in Warehousing

LPNs (License Plate Numbers) are used by a wide range of warehouse and supply chain roles — from receiving clerks to warehouse managers — to uniquely identify and track pallets, containers, and other movable units throughout operations.

License Plate Numbers (LPNs) are not objects — they are identifiers — and like any useful identifier, they gain value from the people who create, scan, update, and act on them. Understanding who uses LPNs helps beginners see how the concept fits into everyday warehouse and logistics workflows and why assigning clear responsibilities matters for accuracy and efficiency.

Front-line operational roles

• Receiving clerks and dock teams: Often the first to create an LPN when a pallet or container arrives. They label the unit, scan the code into the Warehouse Management System (WMS), and tie the physical item to the inbound shipment record.
• Putaway teams and forklift operators: Use LPNs during putaway to record where a unit is stored. They scan the LPN at the origin and at the destination location so inventory maps to an exact slot or bay.
• Pickers and packers: Reference LPNs when performing case or pallet picks, during multi-case picks, or when picking whole pallets. Packing staff may scan LPNs to confirm items are included in outbound orders.
• Shipping clerks: Verify outgoing LPNs to match shipment manifests and carrier documents, ensuring the right units go on the correct trailers.
• Cycle counters and auditors: Use LPNs to reconcile physical inventory against system records. Finding or scanning a missing LPN is a key step in resolving discrepancies.

Supervisory and management roles

• Warehouse managers and operations supervisors: Rely on LPN-based reporting to monitor throughput, identify bottlenecks, and measure productivity. LPN usage patterns reveal where processes or training need improvement.
• Inventory managers: Use LPNs to manage stock levels, transfers, and safety stock calculations. LPN-level visibility helps predict shortages and plan replenishment.

Systems and support roles

• WMS/TMS/ERP administrators: Configure how LPNs are generated, formatted, and integrated with other systems. They define rules for reuse, lifecycle states, and data synchronization between systems.
• IT and integration specialists: Build barcode/RFID interfaces and ensure handheld scanners, printers, conveyors, and sortation systems correctly read and write LPN data to the WMS.
• Labeling and quality teams: Define label design and placement to keep scannability high and prevent mislabeling that would break traceability.

External stakeholders

• Third-party logistics (3PL) providers: Use LPNs to segregate customer stock and manage multi-client warehouses. Customers often require LPN-level visibility as part of service-level agreements.
• Carriers and transportation providers: Scan trailer- or pallet-level LPNs at pickup and delivery to provide proof of movement and enable inbound/outbound appointment confirmation.
• Suppliers and vendors: May assign or expect certain LPN formats (for example GS1 SSCC) on pallets they send, simplifying automated receiving for the warehouse.

Who creates and who owns LPNs?

Ownership depends on the business model and contract terms. In many operations the warehouse or WMS automatically generates LPNs at the moment of receipt or palletization — the warehouse then owns that identifier for operational control. In other cases, suppliers create and apply LPNs (or SSCCs) before shipping; the receiving warehouse then captures those identifiers and maps them into its WMS. Clear policies should define whether external LPNs are accepted, overridden, or reissued.

Training and governance

Because many roles touch LPNs, consistent training and simple standard operating procedures deliver strong returns. Typical topics include how to scan an LPN correctly, when to re-label a damaged tag, the lifecycle states for an LPN (active, closed, quarantined), and how to handle duplicate or unreadable identifiers. Assigning clear responsibility for exceptions — who resolves duplicate LPNs, who retires them, and who updates the WMS when physical units are combined or split — prevents inventory errors and operational downtime.

Common mistakes related to who uses LPNs

• Assuming only one role needs LPN training; in reality, multiple teams interact and must follow shared rules.
• Not defining ownership of externally applied LPNs, which can lead to duplicates or conflicting identifiers.
• Lack of escalation paths for unreadable or duplicate LPNs, causing stalled docks and counting mismatches.

In short, LPNs are simple in concept but touch many people across the supply chain. Defining who is responsible for creation, scanning, maintenance, and exception handling — and training those people — is essential for reliable, scalable warehouse operations.