2.8 Warehouse Operations

The warehouse is not a storage unit; it is a processing center. Errors introduced here (wrong count, mixed parts, ESD damage) propagate directly to the SMT line, causing machine stoppages. This section defines the physical protocols for receiving, storage, and issuance.

2.88.1 WarehouseReceiving: OperationsThe 3-Way Match 

Every receipt must validate three data points before acceptance:

1. Physical Item: Matches the manufacturer P/N and quantity on the label.
2. Packing Slip: Matches the physical item.
3. Purchase Order: Matches the Packing Slip.

• Receiving (Goods In):Discrepancy: TheAny mismatch halts the receipt. Material moves to the "3-WayTrouble Match" (PO vs. Packing Slip vs. Physical Count).Cage."

2.8.2 Storage Protocols

• FIFO (First-In, First-Out): MandatoryThe rotationoldest todate preventcode aging.must be issued first. ERP systems must enforce this picking logic.
• MSD Control: Moisture Sensitive Devices must be stored in dry boxes or MBBs (Moisture Barrier Bags) with HIC (Humidity Indicator Cards) per J-STD-033.
• ESD Control: All active components must remain in ESD-shielding packaging until loaded onto the feeder.

2.8.3 Shelf Life Management:Management

• Perishables: Strict controls for time-sensitive materials (Solder Paste,paste, Adhesives). Expiry labelingadhesives, and disposalflux protocols.must carry visual expiry labels.
• Cycle Counting:Protocol: ReplacingExpired material is logically locked in the "AnnualERP Physicaland Inventory"physically shutdownsegregated withfor continuousdisposal. dailyUsage countsof toexpired maintainchemistry >99%requires accuracy.a documented waiver and validation test.

Final Checklist

Operation	Requirement	Risk Mitigated
Receiving	3-Way Match (Part/Slip/PO)	Inventory/Financial error
Picking	FIFO (Oldest Date Code First)	Solderability issues
Storage	J-STD-033 (Dry Pack) Compliance	Popcorning during reflow
Expiry	Monthly Audit of Perishables	Defective solder joints