WTX EDI and BPM Solutions By Mallibabu

Envelope, Header, and Trailer Segments

Soft Share Tree Level	Segment/ Example Elements	Name	Description	Example Values / Comments
1	ISA	Interchange Information	Identifies the sender and receiver using QID's. There is only one ISA	The ISA and IEA segments are called the envelope
1	ISA05	Sender Qualifier ID	Two digits that specify what kind of sender identification is used in segment ISA06	01 = Duns # 08 =UCC EDI # 12 =phone # 14 = Duns + suffix # ZZ = mutually defined
1	ISA06	Interchange Sender ID	A number that uniquely identifies the sender	The Duns #, UCC EID #, phone #, Duns + suffix #, or mutually defined #
1	ISA 07	Receiver Qualifier ID	Two digits that specify what kind of receiver identification is used in segment ISA08	01 = Duns # 08 =UCC EDI # 12 =phone # 14 = Duns + suffix # ZZ = mutually defined
1	ISA08	Interchange Receiver ID	A number that uniquely identifies the receiver	The Duns #, UCC EID #, phone #, Duns + suffix #, or mutually defined #
1	ISA13	Interchange Control Number	Sequential assigned number by the sender for this transmission	Will match the ISA15 number in the envelope report on EC Grid
1	ISA15	Usage Indicator	Identifies this transmission's purpose for production or test	Will be P for Production or T for Test
2	GS	Functional Group Header	Identifies the kind of business document in this transmission	There can be more than one GS, but this is very rare
2	GS01	Functional Identifier Code	Two letter abbreviation for the type of transaction being sent	PO, Purchase Order SH, Ship Notice IN, Invoice FA, Functional Acknowledgement PC, Purchase Order Change RA, Remit Advice RS, Order Status
2	GS02	Application Sender's Code	The identification number of the sender	Same as ISA06
2	GS03	Application Receiver's Code	The identification number of the receiver	Same as ISA08
2	GS06	Group Control Number	Sequentially assigned by sender for each functional group	Will match the control number in the AK1 segment of the 997 for a summary level 997
NA	ST	Transaction Set Header	Marks beginning of a document, for example, one Purchase Order	A transaction set is one business document, and there can be multiple documents (common for Purchase Orders)
NA	ST01	Transaction Set ID Code	Three digit number for the type of transaction set (i.e. document being sent)	850 for Purchase Order 810 for Invoice Redundant with GS01 but uses 3 digits instead of 2 letters
NA	ST02	Transaction Set Control Number	Sequentially assigned number by the sender for each transaction set
NA	SE	Transaction Set Trailer	Marks the end of a document, for example, one Purchase Order
NA	SE01	Number of Included Segments	The number of segments included in the transaction set
NA	SE02	Transaction Set Control Number	The control number of the transaction set just ended	Must match the control number in ST02 of this transmission
NA	GE	Functional Group Trailer	Marks the end of the functional group
NA	GE01	Number of Transaction Sets	The number of transaction sets included in this functional group just ended
NA	GE02	Group Control Number	The control number of the functional group just ended	Must match the control number in GS06 of this transmission
NA	IEA	Interchange Control Trailer	Marks the end of one functional group(s) and the end of an EDI Transmission	The ISA and IEA segments are called the "envelope"
NA	IEA01	Number of Included Functional Groups	Number of GS segments	This is very rarely more than one
NA	IEA02	Interchange Control Number	The same number as ISA13	Must match the ISA13 number in this transmission

Note: all of the above envelope, header, and trailer segments and elements usage are very similar for most trading partners. The Transaction Set Segments vary by the type of transaction (PO, Invoice, ASN) as well as within the transaction type for each trading partner's requirements.