860 Purchase Order Change Request - Buyer Initiated
REI · X12 004010
REI’s published 860 specification, rendered as an interactive guide. Expand any segment to see its elements, data types, lengths and accepted codes — then validate your own document against it below.
Specification
12 of 12 segments
HEADING
ST
Transaction Set Header ST
pos 010
Optional
max —
BCH
Beginning Segment For Purchase Order Change BCH
pos 020
Required
max —
REF
Reference Identification REF
pos 050
Optional
max —
FOB
Fob Related Instructions FOB
pos 080
Optional
max —
ITD
Terms Of Sale Deferred Terms Of Sale ITD
pos 130
Optional
max 5
DTM
Date Time Reference DTM
pos 150
Optional
max 10
TD5
Carrier Details Routing Sequence Transit Time TD5
pos 240
Optional
max 12
N9 Loop
N9
Reference Identification N9
pos 285
Required
max —
MSG
Message Text MSG
pos 290
Optional
max 1000
DETAIL
POC Loop
POC
Line Item Change POC
pos 010
Required
max —
PID Loop
PID
Product Item Description PID
pos 050
Required
max —
SUMMARY
SE
Transaction Set Trailer SE
pos 030
Optional
max —
Validate a 860
Paste or upload a document and check it against REI’s published rules — segment order and repetition, required elements, field lengths, data types and accepted codes. Nothing is stored.
Go live on REI’s 860 in days, not months
Weredi maps this guide to your ERP, runs the test cycle with REI, and keeps the spec current as it changes.