EDI Reference / segments / GS
GS
Functional Group Header
Wraps a group of same-type transactions (all POs, all invoices) inside the interchange.
Key elements
| Element | Name | What it carries |
|---|---|---|
| GS01 | Functional ID Code | PO=orders, IN=invoices, SH=ship notices, FA=997s. |
| GS06 | Group Control Number | Echoed by GE; must match. |
| GS08 | Version/Release | e.g. 004010. |
Key elements only — the ones that matter in retail trade, not the full element list.
Appears in
850 · Purchase Order
855 · Purchase Order Acknowledgment
856 · Advance Ship Notice (ASN)
810 · Invoice
997 · Functional Acknowledgment
860 · Purchase Order Change
865 · PO Change Acknowledgment
846 · Inventory Inquiry / Advice
832 · Price / Sales Catalog
816 · Organizational Relationships
824 · Application Advice
940 · Warehouse Shipping Order
943 · Warehouse Stock Transfer Shipment Advice
944 · Warehouse Stock Transfer Receipt Advice
945 · Warehouse Shipping Advice
947 · Warehouse Inventory Adjustment Advice
204 · Motor Carrier Load Tender
214 · Transportation Carrier Shipment Status
875 · Grocery Products Purchase Order
877 · Manufacturer Coupon Family Code Structure
880 · Grocery Products Invoice
See a real GS in context — paste any X12 and the Inspector breaks out every segment.
Inspect an X12 free