855 Purchase Order Acknowledgment
O'Reilly Auto · X12 004010
O'Reilly Auto’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
12 of 12 segments
HEADING
ST
Transaction Set Header ST
pos 010
Optional
max —
BAK
Beginning Segment For Purchase Order Acknowledgment BAK
If an order is accepted in its entirety, the BAK segment is the only required segment.
pos 020
Required
max —
N1 LoopN1 Loop Supplier/Manufacturervariant 1 of 2
N1
Name N1
pos 300
Required
max —
N1 LoopN1 Loop Buying Party (Purchaser)variant 2 of 2
N1
Name N1
pos 300
Required
max —
DETAIL
PO1 Loop
PO1
Baseline Item Data PO1
pos 010
Required
max —
LIN
Item Identification LIN
If an item is replaced or substituted with a different item, an LIN segment is required showing the new item number and a CTP segment is required showing the price of the new item.
pos 015
Optional
max —
CTP
Pricing Information CTP
If an item is replaced or substituted with a different item, an LIN segment is required showing the new item number and a CTP segment is required showing the price of the new item.
pos 040
Optional
max —
DTM
Date Time Reference DTM
pos 200
Optional
max 10
ACK Loop
ACK
Line Item Acknowledgment ACK
pos 270
Required
max —
DTM
Date Time Reference DTM
If an item is back ordered, you must include a DTM segment showing the expected availability date.
pos 280
Optional
max —
SUMMARY
CTT Loop
CTT
Transaction Totals CTT
pos 010
Required
max —
SE
Transaction Set Trailer SE
pos 030
Optional
max —
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