The most efficient point to catch a problem is before a material ever enters a workflow. A short, disciplined documentation review at receipt confirms that the physical item matches its records, that its identity and condition are documented, and that any discrepancy is surfaced while it is still easy to resolve. This article presents that review as a practical, adaptable checklist.
The checklist below is a starting point, not a fixed procedure. Laboratories commonly adapt it to their own SOPs, materials, and requirements.
Reviewing Product Labels
The label is the first thing to examine. Laboratories commonly confirm that it is legible, intact, and consistent with the accompanying documentation. A label that is damaged, ambiguous, or inconsistent with the records is itself a discrepancy worth documenting before proceeding.
Confirming Identifiers
Identity travels with a set of identifiers, and each is worth confirming against the documentation on receipt:
- Product name — matches the order and documentation.
- Catalog identifier — confirms the specific item, not just a category.
- Lot number — matches the label and links to the correct COA and records.
- Expiration or retest information, where available — noted for inventory status and review timing.
The distinction between these identifiers, and why the lot number in particular is the anchor for traceability, is explained in our guide to batch traceability.
Reviewing the COA and Batch Documentation
With identifiers confirmed, the accompanying Certificate of Analysis and batch documentation are reviewed. Laboratories commonly check that the COA corresponds to the lot in hand, that its fields are legible and complete, and that the methods and reporting limits are present so results can be interpreted in context. How to read these fields without overstating their meaning is covered in our Certificate of Analysis guide.
Inspecting Packaging Condition
Packaging is inspected on receipt for damage, compromised seals, or signs of environmental exposure. Because packaging is the material's first barrier against its environment, its condition is part of the receipt record, and any concern is documented before storage.
Recording Receipt Details
A complete receipt record turns an arrival into a documented event. Common fields include:
- Receipt date — when the material arrived and was logged.
- Storage location — where it was placed, consistent with documented storage practices.
- Initial status — for example, received or quarantined pending review.
- Observations — appearance and packaging condition as received.
These records connect to storage and inventory practices described in our storage practices guide.
Assigning Internal Inventory Identifiers
Where appropriate, laboratories assign an internal inventory identifier to a received material in addition to the supplier's lot number. This internal reference supports the laboratory's own tracking and is recorded alongside the receipt date and storage location, so that the material is locatable within the lab's systems while the supplier's lot number preserves the external link to documentation.
Identifying Discrepancies Before Use
If any element of the review does not reconcile — a mismatched lot number, an incomplete COA, damaged packaging, or an ambiguous label — common practice is to:
- Hold the material under an "under review" or quarantine status.
- Document the discrepancy factually against the relevant identifiers.
- Refrain from introducing the material into any workflow until the matter is resolved under institutional SOPs.
Surfacing a discrepancy here is far less costly than discovering it after the material is in use.
Developing an Adaptable Checklist
A documentation review is most effective when it is written down and consistently applied. Laboratories commonly build a short checklist from the elements above — labels, identifiers, COA, packaging, receipt records, internal identifiers, and discrepancy handling — and then adapt it to their own SOPs, materials, and requirements. The goal is a repeatable, documented review that every received material passes through before it is released for use.
Key Takeaways
- Reviewing documentation at receipt is the cheapest point to catch a problem.
- Confirm product name, catalog identifier, and lot number — plus expiration or retest information where available.
- Check that the COA corresponds to the lot and includes methods and reporting limits.
- Record receipt date, storage location, status, and observations; assign an internal identifier where appropriate.
- Segregate and document any discrepancy before the material enters a workflow; adapt the checklist to your SOPs.