BOL Number

BOL number is a unique identifier assigned to a Bill of Lading, used to track and reference shipments throughout the supply chain.

What a BOL Number Is Used For

The BOL number acts as a shipment reference ID that allows shippers, carriers, warehouses, and receivers to quickly locate and manage freight documentation. It connects all shipment-related records—such as the Bill of Lading, tracking updates, and delivery confirmation—under one identifiable number.

This number is essential for shipment visibility, communication, and documentation accuracy across logistics operations.

How a BOL Number Works

When a shipment is created, the carrier or shipper assigns a BOL number to the Bill of Lading. This number is then used throughout the shipment lifecycle:

  1. Shipment Creation – A BOL number is generated and tied to the shipment details.
  2. Pickup and Transit – The number is referenced in tracking systems and carrier communications.
  3. Warehouse Handling – Facilities use the BOL number to receive, process, and verify freight.
  4. Delivery and Confirmation – The BOL number links to proof of delivery (POD) and final documentation.

Where You’ll Find a BOL Number

The BOL number typically appears on:

  • The Bill of Lading document itself
  • Shipping labels or freight paperwork
  • Carrier tracking systems
  • Warehouse management systems (WMS)
  • Invoices and freight audit documents

It is often located near the top of the BOL and may be labeled as:

  • BOL #
  • Bill of Lading Number
  • Shipment Reference

BOL Number vs. Tracking Number

BOL NumberTracking Number
Identifies the Bill of Lading documentTracks the physical movement of a shipment
Used in freight and logistics documentationUsed primarily for shipment visibility
Common in LTL, FTL, and freight shippingCommon in parcel and freight shipping
Tied to contracts and shipment detailsTied to carrier scan events and delivery status

In many freight shipments, both numbers are used together: one for documentation (BOL) and one for real-time tracking.

Example of a BOL Number in Use

A distributor ships a palletized load via an LTL carrier. The shipment is assigned a BOL number, which is referenced on all paperwork and used by the warehouse team to verify inbound goods. The same number is used to resolve discrepancies, track documentation, and confirm delivery.

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