855 B2B Purchase Order Acknowledgment
Babylist · X12 004010
Babylist’s published 855 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
7 of 7 segments
HEADING
ST
Transaction Set Header ST
pos 010
Optional
max —
BAK
Beginning Segment For Purchase Order Acknowledgment BAK
pos 020
Required
max —
DETAIL
PO1 Looprequired
PO1
Baseline Item Data PO1
pos 010
Required
max —
ACK Looprequired
ACK
Line Item Acknowledgment ACK
Purpose is to indicate quantity being accepted, cancelled or shipped.
ACK05 (068) is required only when accepting (IA) or backordering (IB).
pos 270
Required
max —
N9 Loop
N9
Reference Identification N9
Used to describe change. If item is cancelled this field must be used.
Must use this segment if you are cancelling items in ACK (if ACK01 is IR).
pos 350
Required
max —
SUMMARY
CTT Looprequired
CTT
Transaction Totals CTT
pos 010
Required
max —
SE
Transaction Set Trailer SE
pos 030
Optional
max —
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