01Choose the traceable object
Decide whether the record must distinguish a product type, a production lot or each individual item. Base the choice on risk, product life, recall or service needs, destination duties and practical system capability. Do not add serial numbers merely for appearance; additional precision creates labeling, scanning, data-quality and retention work that must be maintained.
02Define identifiers and ownership
Document the internal SKU, supplier model, revision, batch or lot format, case identity and logistics-unit reference. State who assigns each identifier, where it appears, when it becomes fixed and how duplicates are prevented. If GS1 identifiers are used, follow the current allocation and data-carrier rules rather than creating look-alike numbers.
03Capture creation and transformation
For manufactured or assembled goods, connect relevant incoming material or component lots to the finished-goods lot and quantity. Record site, line or work area when needed, production time window, controlled specification version and responsible record. Where confidential formulas or processes exist, share usable references while protecting restricted detail in the authorized system.
04Link units through packing
Record which SKU and lots enter each inner pack, case, pallet or other logistics unit. Mixed cartons need package-level content detail rather than a generic description. Preserve the relationship when goods are split, combined, relabeled or repacked. Reconcile issued, packed, rejected and remaining quantities so an unexplained difference does not break the chain.
05Record dispatch and receipt events
Link purchase order, invoice, packing list, shipment reference, dispatch date, source and destination to the identified units. At receipt, compare physical labels with pre-advised records, note shortages, substitutions or damage and retain the original identity through quarantine and put-away. A warehouse label may supplement a supplier code but should not erase it.
06Control corrections and access
Keep an audit trail for corrected quantities, replaced labels, merged records and changed dispositions. Define which data suppliers, logistics providers, buyers and customers may view. Traceability files can contain commercial, quality and personal information; access and retention should reflect actual business, contractual and legal requirements.
07Challenge the system with a trace test
Select a finished unit or lot without advance warning. Trace backward to supplier, site, product revision and relevant inputs, then forward to current stock, shipments and recipients. Time the exercise, reconcile quantities and record missing links. Fix the system gap and repeat the test; a spreadsheet that cannot answer the query under operating conditions is not yet reliable.