BIG

Beginning Segment for Invoice

Pos: 020

Max: 1

Heading - Mandatory

Loop: N/A

Elements: 5

User Option (Usage): Must use

To indicate the beginning of an invoice transaction set and transmit identifying numbers and dates

Element Summary:

	Ref	Id	Element Name	Req	Type	Min/Max	Usage
	BIG01	373	Date Description: Date expressed as CCYYMMDD	M	DT	8/8	Must use
	BIG02	76	Invoice Number Description: Identifying number assigned by issuer	M	AN	1/22	Must use
	BIG03	373	Date Description: Date expressed as CCYYMMDD	O	DT	8/8	Used
	BIG04	324	Purchase Order Number Description: Identifying number for Purchase Order assigned by the orderer/purchaser	O	AN	1/22	Used
	BIG05	328	Release Number Description: Number identifying a release against a Purchase Order previously placed by the parties involved in the transaction	O	AN	1/30	Used

Semantics:

1.	BIG01 is the invoice issue date.
2.	BIG03 is the date assigned by the purchaser to purchase order.

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