X12
Inbound

REI X12 860 Purchase Order Change Request

REI-009483355
The EDI 860 is sent by REI to modify an existing Purchase Order. Changes can include quantity adjustments, delivery date shifts, item additions, or cancellations. Suppliers must process changes promptly and confirm via an updated acknowledgment.
14segments
3loops
5mandatory

Schema Reference

14 segments · X12 860 Purchase Order Change Request

ISA ISA Interchange Control Header
Mandatory Max: 1
ISA01 Authorization Information Qualifier
M ID 2-2
ISA02 Authorization Information
M AN 10-10
ISA03 Security Information Qualifier
M ID 2-2
ISA04 Security Information
M AN 10-10
ISA05 Interchange ID Qualifier
M ID 2-2
ISA06 Interchange Sender ID
M AN 15-15
ISA07 Interchange ID Qualifier
M ID 2-2
ISA08 Interchange Receiver ID
M AN 15-15
ISA09 Interchange Date
M DT 6-6
ISA10 Interchange Time
M TM 4-4
ISA11 Interchange Control Standards Identifier
M ID 1-1
ISA12 Interchange Control Version Number
M ID 5-5
ISA13 Interchange Control Number
M N0 9-9
ISA14 Acknowledgment Requested
M ID 1-1
ISA15 Usage Indicator
M ID 1-1
GS GS Functional Group Header
Mandatory Max: 1
GS01 Functional Identifier Code
M ID 2-2
GS02 Application Sender's Code
M AN 2-15
GS03 Application Receiver's Code
M AN 2-15
GS04 Date
M DT 8-8
GS05 Time
M TM 4-8
GS06 Group Control Number
M N0 1-9
GS07 Responsible Agency Code
M ID 1-2
GS08 Version / Release / Industry Identifier Code
M AN 1-12
ST Transaction Set Header
Mandatory Max: 1
ST01 Transaction Set Identifier Code
M ID 3-3
ST02 Transaction Set Control Number
M AN 4-9
BCH Beginning Segment for Purchase Order Change
Mandatory Max: 1
BCH01 Transaction Set Purpose Code
M ID 2-2
BCH02 Purchase Order Type Code
M ID 2-2
BCH03 Purchase Order Number
M AN 1-22
BCH06 Date
M DT 8-8
BCH11 Date
O DT 8-8
REF Reference Identification
REF01 Reference Identification Qualifier
M ID 2-3
REF02 Reference Identification
C AN 1-30
FOB F.O.B. Related Instructions
FOB01 Shipment Method of Payment
M ID 2-2
FOB02 Location Qualifier
C ID 1-2
FOB06 Location Qualifier
C ID 1-2
FOB07 Description
O AN 1-80
FOB09 Description
C AN 1-80
ITD Terms of Sale/Deferred Terms of Sale
Optional Max: 5
ITD03 Terms Discount Percent
O R 1-6
ITD05 Terms Discount Days Due
C N0 1-3
ITD07 Terms Net Days
O N0 1-3
ITD12 Description
O AN 1-80
DTM Date/Time Reference
Optional Max: 10
DTM01 Date/Time Qualifier
M ID 3-3
DTM02 Date
C DT 8-8
TD5 Carrier Details (Routing Sequence/Transit Time)
Optional Max: 12
TD505 Routing
C AN 1-35
N9 Loop Repeat: 1,000
N9 Reference Identification
Optional Max: 1
N901 Reference Identification Qualifier
M ID 2-3
N902 Reference Identification
C AN 1-30
MSG Message Text
Optional Max: 1,000
MSG01 Free-Form Message Text
M AN 1-264
POC Loop Repeat: 1,000
POC Line Item Change
Optional Max: 1
POC01 Assigned Identification
O AN 1-20
POC02 Change or Response Type Code
M ID 2-2
POC03 Quantity Ordered
O R 1-15
POC04 Quantity Left to Receive
C R 1-9
POC06 Unit Price
C R 1-17
POC08 Product/Service ID Qualifier
C ID 2-2
POC09 Product/Service ID
C AN 1-48
POC10 Product/Service ID Qualifier
C ID 2-2
POC11 Product/Service ID
C AN 1-48
POC12 Product/Service ID Qualifier
C ID 2-2
POC13 Product/Service ID
C AN 1-48
PID Loop Repeat: 1,000
PID Product/Item Description
Optional Max: 1
PID01 Item Description Type
M ID 1-1
PID02 Product/Process Characteristic Code
O ID 2-3
PID05 Description
C AN 1-80
SE Transaction Set Trailer
Mandatory Max: 1
SE01 Number of Included Segments
M N0 1-10
SE02 Transaction Set Control Number
M AN 4-9
How It Works

Automating REI EDI 860

Stacksync validates, transforms, and delivers your 860 transactions automatically — so your team can focus on operations, not EDI compliance.

Validate
Transform
Route
Monitor
Stacksync detects incoming 860 PO Changes and updates the original order in your ERP automatically. Changed fields are highlighted and your team is notified — so you can review and confirm without manually comparing documents.

REI EDI 860 FAQ

Common questions about 860 Purchase Order Change Request transactions with REI.

How long does it take to set up REI EDI with Stacksync?

Most suppliers are fully connected and processing live REI EDI transactions within 3–5 business days. Stacksync's no-code setup means you don't need developers or EDI consultants — configure your field mappings through our visual interface, run a test cycle, and go live.

Do I need an existing VAN or AS2 connection to trade with REI?

No. Stacksync handles the entire EDI transport layer. We connect directly to REI's trading partner network through our certified connections. You don't need to manage a separate VAN subscription, AS2 certificates, or SFTP configurations.

How does Stacksync help with REI compliance?

Stacksync improves compliance scores by eliminating manual processing delays. Purchase Orders sync to your system in real time, ASNs are generated automatically when you ship, and invoices are validated with three-way matching before submission. Real-time monitoring alerts you to issues before they become chargebacks.

What EDI document types does Stacksync support for REI?

Stacksync supports all EDI document types required by REI — including Purchase Orders (850), Invoices (810), ASNs (856), PO Acknowledgments (855), and more. Our platform handles the full lifecycle from order to payment automatically.

Can I connect REI EDI to my existing ERP or WMS?

Yes. Stacksync integrates with any system that has a database or API — including SAP, Oracle, NetSuite, Microsoft Dynamics, and custom-built ERPs. Data flows bidirectionally between REI's EDI network and your system in real time.

What happens when REI updates their EDI specifications?

Stacksync monitors REI's EDI spec changes and updates our mappings proactively. When a change affects your integration, we notify you and apply updates — so you stay compliant without scrambling to decode new implementation guides.