Add envelope information to your application

If you want to incorporate EDI partner identification into your application data, you can modify your executable map rule so that the envelope information is mapped.

Add the ISA Segment as an argument to the functional map Map#850ToPO.

=Map#850ToPO (Transaction #850 Inbound Partner Set 
V3020:.:EDIPOs,
               Partner Inbound ISA Segment Control
               ANSI:.:EDIPOs)

The functional map has the ISA information that pertains to the Transaction #850, and it can be mapped to your purchase order file.