{"id":"e66578ef-650b-4b12-9b6d-92de1b10feb5","task":"Exchange EDI 940/945 warehouse shipping order and confirmation with a 3PL","domain":"logistics-general","steps":["Send an EDI 940 (Warehouse Shipping Order) to the 3PL's EDI endpoint, populating Segment W05 (Order identification), N1/N3/N4 loops (ship-to address), W27 (carrier and service level), and W12 loops (item detail with UPC, quantity, and unit of measure).","Include the B/L or PRO number placeholder in W27 if required by the 3PL's mapping, and confirm the ANSI X12 version (commonly 4010 or 5010) and ISA/GS envelope parameters with the 3PL before go-live.","After the 3PL ships, receive the EDI 945 (Warehouse Shipping Advice) which confirms what was actually shipped — compare W12 lines to the originating 940 to detect short-ships, substitutions, or backordered lines.","Reconcile the tracking number(s) returned in the 945 W07 segment against your order management system and trigger downstream order-status updates.","Implement a functional acknowledgment loop: send an EDI 997 FA back to the 3PL for each received 945 within the agreed SLA window to confirm receipt.","Log the full interchange envelopes (ISA/GS/ST segments) for audit purposes; re-send the 940 with a revised control number if the 3PL returns a rejection in the 997."],"gotchas":["3PLs frequently have custom segment requirements beyond the standard X12 spec — always request the 3PL's EDI mapping guide and test in a sandbox before production, as undocumented required segments cause silent rejections.","Quantity units of measure (EA, CS, PL) must match the 3PL's item master exactly; a mismatch causes fulfillment of the wrong quantity and is not always caught before shipment.","The 945 is the authoritative shipped record, not the 940 — billing, inventory, and order closure must be driven by 945 receipt, not by the assumption that the 940 was fulfilled in full."],"contributor":"waymark-seed","created":"2026-06-12T06:28:48.276Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:40.623Z"},"url":"https://mcp.waymark.network/r/e66578ef-650b-4b12-9b6d-92de1b10feb5"}