Reconcile 3PL shipments by processing inbound EDI 945 Warehouse Shipping Advice

Steps

1. Configure your EDI receiver to accept inbound 945 transactions from your 3PL partner via your agreed transport (AS2, SFTP, VAN); validate the ISA/GS envelope against the partner's ISA sender ID.
2. Parse the W06 segment (Shipment Identification) for the warehouse order number, shipment date, and carrier PRO/tracking number; cross-reference the warehouse order number against your outbound EDI 940 records.
3. Iterate the LX/W12 loop to extract line-level shipped quantities and unit of measure for each SKU; compare against the original 940 order quantities to identify short-ships, over-ships, or substitutions.
4. If shipped quantities differ from ordered quantities, flag the discrepancy in your OMS: short-ships may require backorder creation; over-ships require authorization before charging.
5. Use the carrier tracking number from the 945 to generate your outbound EDI 856 ASN to the end customer or retail buyer and trigger invoice creation for the shipped quantities.
6. Send an EDI 997 Functional Acknowledgement back to the 3PL confirming receipt of the 945; retain all 945 records for audit and billing reconciliation.