850 Purchase Order
Fastenal · X12 004010
Fastenal’s published 850 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
30 of 30 segments
HEADING
ST
Transaction Set Header ST
pos 010
Optional
max —
BEG
Beginning Segment For Purchase Order BEG
pos 020
Required
max —
CUR
Currency CUR
pos 040
Optional
max —
REF
Reference Identification REF
pos 050
Optional
max —
PER
Administrative Communications Contact PER
pos 060
Optional
max 3
TAX
Tax Reference TAX
1. Tax ID number is, in many instances, referred to as a Tax Exemption Number. The paired (combined) use of
data elements 309 and 310 provides for the designation of five taxing jurisdictions.
2. TAX01 is required if tax exemption is being claimed.
pos 070
Optional
max —
FOB
Fob Related Instructions FOB
pos 080
Optional
max —
ITD
Terms Of Sale Deferred Terms Of Sale ITD
pos 130
Optional
max —
DTM
Date Time Reference DTM
pos 150
Optional
max —
PWK
Paperwork PWK
pos 210
Optional
max 25
TD5
Carrier Details Routing Sequence Transit Time TD5
pos 240
Optional
max 12
N9 Looprepeats 1000
N9
Reference Identification N9
pos 295
Required
max —
MSG
Message Text MSG
pos 300
Optional
max 1000
N1 Looprepeats 200
N1
Name N1
pos 310
Required
max —
N2
Additional Name Information N2
pos 320
Optional
max 2
N3
Address Information N3
pos 330
Optional
max 2
N4
Geographic Location N4
pos 340
Optional
max —
DETAIL
PO1 Looprepeats 100000required
PO1
Baseline Item Data PO1
pos 010
Required
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 —
DTM
Date Time Reference DTM
pos 210
Optional
max 10
MSG
Message Text MSG
pos 289
Optional
max 1
N1 Looprepeats 200
N1
Name N1
1. This segment, used alone, provides the most efficient method of providing organizational identification. To
obtain this efficiency the "ID Code" (N104) must provide a key to the table maintained by the transaction
processing party.
2. N105 and N106 further define the type of entity in N101.
pos 350
Required
max —
N2
Additional Name Information N2
pos 360
Optional
max 2
N3
Address Information N3
pos 370
Optional
max 2
N4
Geographic Location N4
pos 380
Optional
max 1
SUMMARY
CTT Looprepeats 1
CTT
Transaction Totals CTT
pos 010
Required
max —
AMT
Monetary Amount AMT
pos 020
Optional
max —
SE
Transaction Set Trailer SE
pos 030
Optional
max —
Validate a 850
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