BAK Beginning Segment for Purchase Order Acknowledgment

To indicate the beginning of the Purchase Order Acknowledgment Transaction Set and transmit identifying numbers and dates

Position: BAK-01 · Element: 353 · Name: Transaction Set Purpose Code · Type: Identifier (ID) · Requirement: Mandatory · Min: 2 · Max: 2 · Repeat: -

Code identifying purpose of transaction set

Position: BAK-02 · Element: 587 · Name: Acknowledgment Type · Type: Identifier (ID) · Requirement: Mandatory · Min: 2 · Max: 2 · Repeat: -

Code specifying the type of acknowledgment

Position: BAK-03 · Element: 324 · Name: Purchase Order Number · Type: String (AN) · Requirement: Mandatory · Min: 1 · Max: 22 · Repeat: -

Identifying number for Purchase Order assigned by the orderer/purchaser

BAK-04 C041 Composite Date Composite (composite) Mandatory

Position: 01 · Element: 373 · Name: Date · Type: Date (DT) · Requirement: Mandatory · Min: 6 · Max: 6 · Repeat: -

Date (YYMMDD)

Position: 02 · Element: 624 · Name: Century · Type: Numeric (N0) · Requirement: Optional · Min: 2 · Max: 2 · Repeat: -

The first two characters in the designation of the year (CCYY)

Position: BAK-05 · Element: 328 · Name: Release Number · Type: String (AN) · Requirement: Optional · Min: 1 · Max: 30 · Repeat: -

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

Position: BAK-06 · Element: 326 · Name: Request Reference Number · Type: String (AN) · Requirement: Optional · Min: 1 · Max: 45 · Repeat: -

Reference number or RFQ number to use to identify a particular transaction set and query (additional reference number or description which can be used with contract number)

Position: BAK-07 · Element: 367 · Name: Contract Number · Type: String (AN) · Requirement: Optional · Min: 1 · Max: 30 · Repeat: -

Contract number

Position: BAK-08 · Element: 127 · Name: Reference Identification · Type: String (AN) · Requirement: Optional · Min: 1 · Max: 30 · Repeat: -

Reference information as defined for a particular Transaction Set or as specified by the Reference Identification Qualifier

BAK08 is the seller's order number.

BAK-09 C041 Composite Date Composite (composite) Optional

Position: 01 · Element: 373 · Name: Date · Type: Date (DT) · Requirement: Mandatory · Min: 6 · Max: 6 · Repeat: -

Date (YYMMDD)

Position: 02 · Element: 624 · Name: Century · Type: Numeric (N0) · Requirement: Optional · Min: 2 · Max: 2 · Repeat: -

The first two characters in the designation of the year (CCYY)