Code identifying a group of application related Transaction Sets.

The data interchange control number (GS06) in this header must be identical to the same data element in the associated Functional Group Trailer (GE02).

Code identifying party sending transmission. Codes agreed to by trading partners.

Code identifying party receiving transmission. Codes agreed to by trading partners.

Date sender generated a functional group of transaction sets.

Time (HHMM) when the sender generated a functional group of transaction sets (local time at sender's location).

Assigned number originated and maintained by the sender.

Code used in conjunction with Data Element 480 to identify the issuer of the standard.

Code indicating the version, release, subrelease and industry identifier of the EDI standard being used. Positions 1-3, version number; positions 4-6, release and subrelease level of version; positions 7-12, industry or trade association identifier (optionally assigned by user).