Short answer: Mixed revision receiving control for stamped parts should define how old and new revisions are separated, labeled, shipped, counted, and released. The RFQ or change notice should cover cut-in date, last old-revision shipment, first new-revision lot, carton labels, packing list notes, warehouse hold rules, deviation approval, and photos when mixed stock is unavoidable.
Revision cut-in is not finished when engineering releases a new drawing. The buyer still has old stock, supplier WIP, finished goods, in-transit cartons, and possibly open purchase orders. Receiving needs a clear rule to know what revision arrived and whether it can be used.
Use this page with the revision cut-in and inventory control guide, carton label barcode guide, partial shipment and mixed carton guide、および packing list and COA release guide.
Mixed revision receiving controls
| Control | Why it matters | Evidence to request |
|---|---|---|
| Cut-in rule | Receiving needs to know when old revision is no longer allowed. | Last old lot, first new lot, effective date, and approved overlap. |
| Carton labels | Warehouse teams often identify revision from labels first. | Part number, revision, lot, quantity, PO, and color or text marker if approved. |
| Packing list notes | A shipment can be held if documents hide mixed revisions. | Separate line items by revision, carton count, lot, and quantity. |
| Hold and disposition | Mixed stock can reach the line if receiving has no rule. | Release, segregate, re-label, sort, return, or use under deviation. |
Separate revision control from normal shipment control
Normal receiving checks focus on part number, quantity, PO, and damage. Revision control adds another layer: whether the shipment matches the engineering release status. A carton with the right part number and quantity can still be wrong if the revision is not approved for the line.
If both revisions are temporarily acceptable, record the conditions. Some buyers allow old revision until stock is consumed. Others allow old revision only for service parts or only before a launch date. The supplier should not guess which rule applies.
Receiving should also know who can release a held shipment. Without a named approver, urgent material can sit in quarantine while production assumes the parts are already available.
Make mixed shipments visible
Sometimes mixed revision shipments are unavoidable because of urgent demand or controlled inventory depletion. In that case, the packing list and labels should make the mix obvious. Do not hide mixed stock in one carton or one line item unless the buyer has approved that method.
If sorting or re-labeling is needed, define who performs it and what evidence proves completion. For quality records, connect mixed revision receiving to the containment plan template and containment label evidence guide.
RFQ details to include
- Current drawing revision, new drawing revision, effective date, approved overlap, last old-revision lot, and first new-revision lot.
- Label fields: part number, revision, lot, quantity, PO, pack date, barcode, and whether revision must be highlighted.
- Packing list format, separate line-item rule, carton separation, pallet separation, and photo evidence for first mixed or new-revision shipment.
- Receiving hold rule, deviation approval, sort rule, re-label rule, scrap or return rule, and who can approve conditional release.
- Supplier inventory, buyer inventory, WIP, in-transit stock, service stock, and how each category is handled.
- Assembly line risk, launch timing, shortage risk, and whether old revision can be used for pilot, service, or emergency shipments.
How to compare supplier answers
A strong supplier answer shows how they identify and separate revisions from production through shipment. A weak answer only says the new drawing will be followed. Ask for label examples and first shipment photos when the cut-in is high risk.
If a supplier has old stock, ask for a disposition plan before approving new production. The plan should say whether old stock is used, sorted, reworked, scrapped, returned, or held under buyer instruction.
Send change notice, old and new drawings, inventory status, label rules, and receiving hold rules through the お問い合わせページ. Use the RFQ form to plan revision cut-in before mixed stock reaches receiving.
FAQ
What causes mixed revision receiving problems?
Common causes include unclear cut-in dates, unlabeled old stock, mixed cartons, packing lists without revision fields, supplier WIP, and in-transit shipments during engineering changes.
Can old and new revisions ship together?
Only when the buyer approves the overlap and the shipment clearly separates revision, lot, quantity, labels, and packing list lines.
What should receiving check first?
Check part number, revision, lot, quantity, carton label, packing list, PO, deviation approval, and whether the revision is approved for use.
What should buyers send for revision receiving control?
Send old and new drawings, cut-in rule, allowed overlap, label fields, packing list format, hold rule, and disposition rules for old stock.