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Spotlight PEPPOL BIS Billing 3.0 The EU e-invoicing mandate is here — France Sept 2026, Belgium Jan 2026, Germany 2025.

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Tools

X12 126 — Vehicle Application Advice

The 126 documents the application of a vehicle to a logistics assignment: assignment to a load, return, repositioning of OEM inventory.

Purpose

The 126 is used between OEMs and carriers, or between carriers and 3PLs, to communicate an assignment decision: 'this VIN is assigned to this load', 'this VIN is repositioned from plant A to plant B', 'this VIN must be returned'. It serves as an operational instruction, not a detailed manifest.

It is used within the automotive distribution chain, especially for yard and ramp inventory. Acknowledged by 997. For the effective manifest of a load, the 204 or 125 takes over.

Envelope structure

The 126 travels within the three X12 envelope levels (ISA/IEA, GS/GE with functional group VA, and ST/SE). Didactic example in release 004010:

x12 example-126.x12 
ISA*00*          *00*          *ZZ*FORDLOGIS     *ZZ*JACKCOOPER     *260514*1100*U*00401*000000126*0*P*>~
GS*VA*FORDLOGIS*JACKCOOPER*20260514*1100*1*X*004010~
ST*126*0001~
B1*FORDLOGIS*VA-2026-0042*20260514*A~
N9*VN*1FTFW1ET5MFA12345~
N9*ZZ*ACTION-ASSIGN-LOAD-LD-2026-0099~
N9*ZZ*ORIGIN-PLANT-DEARBORN~
N9*ZZ*DESTINATION-DEALER-AUSTIN~
DTM*002*20260516~
SE*8*0001~
GE*1*1~
IEA*1*000000126~

Common segments

  • Header — ST, B1 (action — A=Add, D=Delete, C=Change).
  • VIN and action — N9*VN (VIN), N9*ZZ (action code: ASSIGN-LOAD, REPOSITION, RETURN), N9*ZZ (action parameters).
  • Origin / destination — N9*ZZ or N1*SH/N1*CN for origin / consignee.
  • Timing — DTM*002 (planned execution date).
  • Summary — SE.

Common pitfalls

  • Ambiguous action: a 126 without an explicit N9*ZZ action can be interpreted as an informational advice or a mandatory instruction; always specify the exact action code.
  • Duplicate VIN: issuing an ASSIGN 126 for an already-assigned VIN triggers an exception that must be handled explicitly (override, refuse) — without control, the carrier receives two contradictory instructions.
  • Repositioning vs delivery: reposition is not a final delivery; a system that mis-interprets bills the carrier improperly for an intermediate move.

Documentation

The code 126 and the name Vehicle Application Advice are public and listed on x12.org/products/transaction-sets. The complete structure of loops, qualifiers and code lists is distributed by DISA via the proprietary Implementation Guides (TR3). ediverse.io covers only public concepts, the envelope and didactic examples.