Trace the lot across the technical and commercial records.
Batch traceability should connect the exact product specification, lot report, quotation, packing list and released material. If one identifier changes without explanation, pause and clarify it in writing.
Traceability record chain
A clean chain uses the same product and lot identifiers wherever possible.
| Record | Identifier to compare | Mismatch to resolve |
|---|---|---|
| Specification | Product name, code and version | Version used in the quotation |
| COA | Lot and tested product | Report linked to another batch |
| Quotation | Code, pack and quantity | Different unit or fill |
| Contract | Seller, specification and terms | Seller or scope mismatch |
| Packing list | Lot, quantity and cartons | Released quantity does not reconcile |
| Invoice | Seller, product and quantity | Payment route or legal seller mismatch |
A traceability review should create a short exception list.
- List every document that mentions the product or lot.
- Mark missing and conflicting identifiers.
- Ask for corrected or clarified records before payment.
- Keep the final record set with the received material.
What this route can and cannot confirm
What if the lot number changes before shipment?
Ask for a written explanation and the corresponding analytical record. Do not assume the earlier COA follows the new lot.
Does a packing list prove analytical identity?
No. It supports the commercial and quantity record; analytical identity belongs to the specification and applicable report.
How long should records be retained?
Retention depends on the business, product and market. The buyer should follow its own quality, tax and legal requirements.
Tell us what you need
Fields marked required are used only to prepare your enquiry. This static form opens your chosen email, WhatsApp or Telegram app and does not store data on this website.