Outside Processor ASC x 12

OP ASC x 12 Implementation

Industry Interpretation

Interchange Control

GS Functional Group Header:

The Joint Metals Guideline does not specify the industry’s position on the use of the GS segment to define how the sender/receiver ID is used; i.e. envelope identity versus internal routing identity.

Steel producers and their trading partners may use GS sender/receiver ID as desired consistent with the ASC X12 standard. The X12 standards denote that the sender of an EDI transaction controls/specifies use of the Sender ID and the receiver controls/specifies use of the Receiver ID.


856 Ship Notice/Manifest

Combination Loads:

The current Joint Metals 003040 Guideline does not clearly document reporting requirements for a Combination Load (multiple steel producer material on same shipment).

The following segments/codes are required to designate a Combination Shipment:

  • MEA at the shipment level with the number of the steel producer’s shipment references in the MEA03 (MEA*CT*NOR*”Number of Ref”*EA).
  • Additional TD1 segment with Consolidated Weight of Shipment (TD1******A*”Wgt”* LB).
  • TD506 with “CT” designating “Combination”.
  • Additional REF segment specifying Master Bill of Lading Number (REF*MB*”Master Bill of Lading Number”).

870 Order Status (Production Rpt / Hold/Release)

Functional Group Code:

All “870” transactions should contain “RS” as the Functional Group Code. The beginning segment (BSR) should be used to designate transaction type:

Version 003040:
BSR01 =”PP” Normal Production or Build-up Production
=”AO” Hold/Release
Version 004010:
BSR01 =”PA” Normal Production
=”PP” Build-up Production
=”AO” Hold/Release

OP ASC x 12 Supplements


AISI Outside Processor Committee
EDI Guideline Supplement Narrative

The accompanying specification documents support the AISI OP EDI Implementation Guidelines – Version 004010, which remains the industry standard. These documents are provided as examples to add interpretation and clarification to the guideline with the objective of encouraging standardization of EDI communications between steel producers and their outside processors.

Work Order Specifications

850 Work Order

855 Work Order Acknowledgement

860 Work Order Change

865 Work Order Change Acknowledgement

Other Specifications

820 Remittance Advice

830 Planning Schedule with Release Capability

841 Specification/Technical Information

858 Shipment Information

862 Shipping Schedule