Part 4.4 GS - Functional Group Header

GS - Functional Group Header

• A Group Envelope contains the same set of transactions grouped in a pair of segments that are sent to a trading partner.
• A functional group contains the same group of transactions.
• We do not have different Transaction sets in a Functional group
• The maximum number of functional groups in an interchange is 99,999.
• Total 8 Elements with 82 bytes (varies).

List of GS Element

1. Element 1 - Functional Group ID (PO - Purchase Order)
2. Element 2 - Sender Information (ID) 
• It could be same as ISA 6th element or different.
3. Element 3 - Receiver Information (ID)
• It should match with ISA 8th Elements.
4. Element 4 - Date (CC/YY/MM/DD)
5. Element 5 - Time (HH/MM or HH/MM/SS, 24 Hours Format)
6. Element 6 - Functional Group Control Number
• It indicates that it belongs to the same trading partner.
• It could match ISA 13th Elements or different.
• It should match with GE 2nd Elements.
7. Element 7 - Responsible Agency Code
• “X” - ANSI ASC X12
• “T” - TDCC
8. Element 8 - Group Version Number
• It will have to match with ISA 12th Elements.