Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year

BIG01 is the invoice issue date.

Identifying number assigned by issuer

Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year

BIG03 is the date assigned by the purchaser to purchase order.

Identifying number for Purchase Order assigned by the orderer/purchaser

Number identifying a release against a Purchase Order previously placed by the parties involved in the transaction

Number assigned by the orderer identifying a specific change or revision to a previously transmitted transaction set

Code specifying the type of transaction

BIG07 is used only to further define the type of invoice when needed.

Code identifying purpose of transaction set

Code indicating type of action

Identifying number assigned by issuer

BIG10 is the consolidated invoice number associated with the invoice identified in BIG02. When BIG07 contains code CI (Consolidated Invoice), BIG02 will contain the consolidated invoice number and BIG10 is not used.

Code indicating the hierarchical application structure of a transaction set that utilizes the HL segment to define the structure of the transaction set