850 	Purchase Order 	

Functional Group=PO 	

This standard provides the format and establishes the data contents of a purchase order transaction set. The purchase order transaction set provides for customary and established business and industry practice relative to the placement of purchase orders for goods and services. 
Heading: 
  	Pos 	Id 	Segment Name 	Req 	Max Use 	Repeat 	Notes 	Usage 	  	
  	2 	ST 	Transaction Set Header 	M 	1 	  	  	Must use 	 	
  	3 	BEG 	Beginning Segment for Purchase Order 	M 	1 	  	  	Must use 	 	
  	6 	REF 	Reference Numbers 	O 	12 	  	  	Used 	 	
  	7 	PER 	Administrative Communications Contact 	O 	3 	  	  	Used 	 	
  	9 	FOB 	F.O.B. Related Instructions 	O 	1 	  	  	Used 	 	
  	21 	ITD 	Terms of Sale/Deferred Terms of Sale 	O 	5 	  	  	Used 	 	
LOOP ID - N1 	  	  	200 	N1/134L 	  	  	
  	134 	N1 	Name 	O 	1 	  	N1/134 	Used 	 	
  	136 	N3 	Address Information 	O 	2 	  	  	Used 	 	
  	137 	N4 	Geographic Location 	O 	1 	  	  	Used 	 	

Detail: 
  	Pos 	Id 	Segment Name 	Req 	Max Use 	Repeat 	Notes 	Usage 	  	
LOOP ID - PO1 	  	  	100000 	N2/235L 	  	  	
  	235 	PO1 	Purchase Order Baseline Item Data 	M 	1 	  	N2/235 	Must use 	 	
  	242 	PID 	Product/Item Description 	O 	1000 	  	  	Used 	 	
  	270 	DTM 	Date/Time Reference 	O 	10 	  	  	Used 	 	

Summary: 
  	Pos 	Id 	Segment Name 	Req 	Max Use 	Repeat 	Notes 	Usage 	  	
  	382 	CTT 	Transaction Totals 	M 	1 	  	N3/382 	Must use 	 	
  	383 	SE 	Transaction Set Trailer 	M 	1 	  	  	Must use 	 	

Notes: 
1/134L 	Loop N1 is optional, but, if used, segment N1 is mandatory. 	
1/134 	Loop N1 is optional, but, if used, segment N1 is mandatory. 	
2/235L 	At least one occurrence of loop PO1 is required. 	
2/235 	At least one occurrence of loop PO1 is required. 	
3/382 	The number of line items (CTT01) is the accumulation of the number of PO1 segments. If used, hash total (CTT02) is the sum of the values of quantity ordered (PO102) for each PO1 segment and free goods (ITA12) for each ITA segment. 	

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