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The evidence file

Ask your CPG 3PL to demonstrate a lot-traceability drill

“We track lots” is a starting claim. A controlled drill can show whether receipts, held stock, and outbound movements actually connect for a selected lot. Record the result and any missing links.

Vetted 3PLs Editorial TeamSeptember 14, 20264 min read

Evidence to bring back

  • Specify the SKU, batch or lot identifier, and relevant shipment references.
  • Start with a selected receipt and ask where its units went.
  • Illustrative drill: 500 units of a lot were received, 320 shipped, 160 remain available, and 20 are on hold.
Cartons and wrapped pallets stored on warehouse shelving
Cartons and wrapped pallets stored on warehouse shelving. Photograph by CHUTTERSNAP / Unsplash. Illustrative industry photograph; no listed provider is depicted.

Define the identifiers before the exercise

Specify the SKU, batch or lot identifier, and relevant shipment references. Ask how those identifiers appear at receiving, storage, picking, and reporting. GS1’s traceability framework provides background for linking product identifiers and traceability events. Your test should examine the actual provider workflow, not assume that a barcode alone means the necessary relationships have been captured.

Work in both directions

Start with a selected receipt and ask where its units went. Then start with an outbound record and ask which lot supplied it. Include stock on hold and any approved adjustments. If lots can be mixed within a storage location, ask how the system maintains the distinction. Capture the query, output, and any manual steps required to assemble the result.

Use reconciliation to expose gaps

Illustrative drill: 500 units of a lot were received, 320 shipped, 160 remain available, and 20 are on hold. Ask the team to demonstrate the records behind all four numbers. An unexplained difference should remain open until investigated. Do not use a production drill to contact customers or initiate an actual recall; agree the scope and permissions before the exercise.

Assess readiness for your product requirements

Record how long the retrieval took, who could run it, and which records required assistance from another party. A successful drill supports a specific traceability capability at that time. It does not establish compliance with every rule applicable to your products. Have the responsible product and compliance specialists determine the controls, retention, and response procedures your business requires.

Evidence to request

  • Define a lot and expected receipt-to-shipment links.
  • Reconcile available, shipped, held, and adjusted units.
  • Record manual steps and unresolved records.

Download this working checklist (CSV)

Compare the evidence →

A couple of questions

Is expiry tracking the same as lot traceability?

No. They can be related, but ask the provider to demonstrate each required capability.

Does a passed drill certify the warehouse?

No. It is evidence for a defined test, not a general certification or regulatory determination.

Reference and scope

GS1: Global Traceability Standard — Background on identifiers and the records connecting traceability events.

The recommendations are editorial guidance. Worked scenarios are illustrative, not reported provider results. How we research and handle featured placements.

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