X12 862 — Shipping Schedule
The 862 sends a supplier the firm short-term delivery calendar, generally as the companion of an 830 (Planning Schedule) that covers the longer horizon.
Purpose
In automotive or industrial supply chains, the buyer sends an 830 (planning schedule) giving a forecast view over weeks to months. The 862 is the firm counterpart: it commits the deliveries actually expected over the short horizon (day, production shift, time slot). Together, 830 and 862 form the steering instrument of Just-in-Time.
The 862 can address deliveries at the half-hour for sequenced flows (JIS — Just in Sequence). The supplier produces only what the 862 requests for the next window; the cost of error is high (assembly-line stoppage).
Envelope structure
The 862 travels in an SS functional group (Shipping Schedule). A
didactic example for 350 units of one part, staggered over three days:
ISA*00* *00* *ZZ*ACMEAUTO *ZZ*ACMETIER1 *260513*0700*U*00401*000000901*0*P*>~
GS*SS*ACMEAUTO*ACMETIER1*20260513*0700*1*X*004010~
ST*862*0001~
BSS*00*REL-2026-W20*RL*20260513*20260520*20260612~
N1*BY*ACME AUTO PLANT 1*92*PLANT-001~
N1*SU*ACME TIER1 PARTS*92*TIER1-A1~
LIN*1**ACME-PN-4421~
FST*100*C*W*20260514*20260514~
FST*100*C*W*20260515*20260515~
FST*150*C*W*20260516*20260516~
CTT*1~
SE*9*0001~
GE*1*1~
IEA*1*000000901~
The BSS (Beginning Segment for Shipping Schedule) opens the transaction:
function code, release number, type code (RL = Release), issue date, horizon start
and end. Each FST (Forecast Schedule) carries a quantity, a type code
(C = Firm), a period (W = Week, D = Day), and the dates of the window.
Common segments
- Header —
ST,BSS(Beginning Segment for Shipping Schedule),REF,DTM,PER(contacts). - Parties —
N1loop for Buyer (BY), Supplier (SU), Ship To (ST), Ship From (SF). - Lines —
LINloop withUIT(Unit Detail),PID,FST(Forecast Schedule — multiple FST per line for the detailed calendar),SDQ(Destination Quantity),REF. - Summary —
CTT,SE.
When you'll see it
- Automotive tier-1 — Ford, GM, Stellantis, Toyota North America send 830 + 862 to steer their assembly lines.
- High-volume manufacturing — large appliances, consumer electronics.
- Aerospace — Boeing and its sub-tiers use the 862 for recurring parts orders.
- Defense — DoD programs with recurring suppliers.
Related transactions
- 850 — Purchase Order
- 855 — Purchase Order Acknowledgment
- 856 — Ship Notice/Manifest
- 846 — Inventory Inquiry/Advice
Documentation
The code 862 and the name Shipping Schedule are public and
listed on
x12.org/products/transaction-sets.
Detailed FST grammar and period codes live in the proprietary
Implementation Guides (TR3); ediverse.io does not redistribute them. See also the
AIAG (Automotive Industry Action Group) sector profiles for North American
automotive conventions.