What the 943 is
The EDI 943 — the X12 Warehouse Stock Transfer Shipment Advice — is notifies the warehouse of inbound stock you're sending. It travels outbound for most trading programs.
When it's sent
The 943 travels outside the core 850 → 855 → 856 → 810 chain — it supports the programs that surround it.
Key segments
The 943 follows the standard X12 segment layout for its functional group. Partner companion guides add the specifics — EDISQ's certified maps carry those rules per partner, so you never read the implementation guide yourself.
Sample 943
A representative 943 interchange — fixed-width ISA envelope, functional group, and control totals:
1ISA*00* *00* *ZZ*ACMESUPPLY *ZZ*RETAILPARTNER *260101*1200*U*00401*000000001*0*P*>~ 2GS*AR*ACMESUPPLY*RETAILPARTNER*20260101*1200*1*X*004010~ 3ST*943*0001~ 4REF*ZZ*SAMPLE 943 DOCUMENT~ 5DTM*097*20260101~ 6SE*4*0001~ 7GE*1*1~ 8IEA*1*000000001~
Partners that require it
Trading partners in the EDISQ catalog that trade the 943:
FAQ
What is an EDI 943?
The EDI 943 is the X12 Warehouse Stock Transfer Shipment Advice. Notifies the warehouse of inbound stock you're sending.
Who sends the 943?
You send the 943 to your trading partner. EDISQ maps it from your ERP, validates it against the partner's spec, and transmits it.
How do I automate the 943?
Enable your trading partner in EDISQ, connect your ERP, and the certified map handles the 943 end to end — first 25 documents each month free.