855 Purchase Order Acknowledgment
US Foods · X12 004010
US Foods’ 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
18 of 18 segments
HEADING
ST
Transaction Set Header ST
pos 010
Optional
max —
BAK
Beginning Segment For Purchase Order Acknowledgment BAK
pos 020
Required
max —
DTM
Date Time Reference DTM
pos 150
Optional
max 10
N9 Loop
N9
Reference Identification N9
pos 280
Required
max —
MSG
Message Text MSG
pos 290
Optional
max 1000
N1 Looprepeats 200
N1
Name N1
pos 300
Required
max —
N3
Address Information N3
pos 320
Optional
max 2
N4
Geographic Location N4
pos 330
Optional
max —
DETAIL
PO1 Looprepeats 100000
PO1
Baseline Item Data PO1
pos 010
Required
max —
CTP
Pricing Information CTP
pos 040
Optional
max —
PID Looprepeats 1000
PID
Product Item Description PID
pos 050
Required
max —
PO4
Item Physical Details PO4
pos 090
Optional
max —
REF
Reference Identification REF
pos 100
Optional
max —
ACK Looprepeats 104
ACK
Line Item Acknowledgment ACK
pos 270
Required
max —
N9 Looprepeats 1000
N9
Reference Identification N9
pos 350
Required
max —
MSG
Message Text MSG
pos 360
Optional
max 1000
SUMMARY
CTT Looprepeats 1
CTT
Transaction Totals CTT
pos 010
Required
max —
SE
Transaction Set Trailer SE
pos 030
Optional
max —
Validate a 855
Paste or upload a document and check it against US Foods’ published rules — segment order and repetition, required elements, field lengths, data types and accepted codes. Nothing is stored.
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