Envelope

The first segment of most purchase orders, the ISA segment, is also known as the envelope because it contains the "address" for both the sender and the receiver of the EDI record. All EDI records must contain an envelope, as the purchase order example shown below does.

ISA*00*          *00*          *08*6120930000     *12*9197472911     *06071
0*192
5*U*00401*000000258*0*P*<~
GS*PO*6120930000*9197472911*20060710*1925*258*X*004010~
ST*850*2580001~
BEG*00*SA*1005061183**20060710~
REF*IA*513141~
CSH*N~
SAC*N**VI*OHNS~
ITD*08**1.000**10**30*****1.000 % 10 Net 30~
DTM*001*20060729~
DTM*010*20060722~
N1*BY*TSC*92*1113~
N3*115 GREYSTONE POWER BOULEVARD~
N4*DALLAS*GA*30157~
PO1*10*12*EA*3.14**IN*2405670*VN*1057*UP*023851010578~
CTT*1~
SE*14*2580001~
GE*1*258~
IEA*1*000000258~

  • The "address" for the sender is the combination of the sender qualifier 08 (element ISA05) and the sender identification number 6120930000 (ISA06).
  • The "address" for the receiver is the combination of the recevier qualifier 12 (ISA07) and the receiver identification number 9197472911 (ISA08).

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