Understand Traceability Lot Codes
A Traceability Lot Code (TLC) is the lot identifier that travels with covered stock through receiving, transfers, and sales. FDA and SFCR share the same TLC engine.
Where the code comes from
| Situation | What Biznsbook does |
|---|---|
| Supplier prints a TLC on the shipment | Enter it on the GRN line — that code is used |
| No supplier TLC on receipt | An internal TLC is allocated automatically |
| Stock moves warehouse to warehouse | The TLC is propagated to the destination batch |
| Item is not FTL or SFCR-covered | No TLC workflow is forced on the document |
Each TLC stays linked to the batch, item, supplier, and warehouse so Trace Reports and ESS exports can rebuild the chain.
What you enter vs. what the system fills
On a covered GRN you still enter the batch number (required) and, when available, the supplier TLC. Everything else on the CTE — product description, quantity, location, reference document, and trading-partner identifiers — comes from the document and party master data you already maintain.
Genealogy vs. Manufacturing lots
The Trace Report CTE timeline can walk batch genealogy (source-batch links) so parent lots show in the chain. That is not the same as Manufacturing's production lot graph (which raw lots went into a work order). Use Manufacturing when the question is shop-floor transformation; use Traceability when the question is FSMA/SFCR critical tracking events.
Batch expiry and recall cases remain under Track expiry, batches, and recalls.