856 Advance Ship Notice
Segment: PRF Purchase Order Reference
Position: 050
Loop: HL Mandatory
Level: Detail
Usage: Optional (Must Use)
Max Use: 1
Purpose: To provide reference to a specific purchase order
Syntax Notes:
Semantic Notes: 1 PRF04 is the date assigned by the purchaser to purchase order.
Data Element Summary 
  Ref. Data
  Des. Element Name Attributes
M PRF01 324 Purchase Order Number M AN 1/20
  Identifying number for Purchase Order assigned by the orderer/purchaser
    Purchase Order Number  
  PRF04 373 Date O DT 8/8
  Date expressed as CCYYMMDD

856I4010 (004010) February 18, 2000