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
Element
Name
Type
Requirement
Min
Max
Repeat
BAK-01
Transaction Set Purpose Code
Identifier (ID)
Mandatory
2
2
-
Code identifying purpose of transaction set
BAK-02
Acknowledgment Type
Identifier (ID)
Mandatory
2
2
-
Code specifying the type of acknowledgment
BAK-03
Purchase Order Number
String (AN)
Mandatory
1
22
-
Identifying number for Purchase Order assigned by the orderer/purchaser
BAK-04
Composite Date
Composite (composite)
Mandatory
01
Date
Date (DT)
Mandatory
6
6
-
Date (YYMMDD)
02
Century
Numeric (N0)
Optional
2
2
-
The first two characters in the designation of the year (CCYY)
BAK-05
Release Number
String (AN)
Optional
1
30
-
Number identifying a release against a Purchase Order previously placed by the parties involved in the transaction
BAK-06
Request Reference Number
String (AN)
Optional
1
45
-
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)
BAK-07
Contract Number
String (AN)
Optional
1
30
-
Contract number
BAK-08
Reference Identification
String (AN)
Optional
1
30
-
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
Composite Date
Composite (composite)
Optional
01
Date
Date (DT)
Mandatory
6
6
-
Date (YYMMDD)
02
Century
Numeric (N0)
Optional
2
2
-
The first two characters in the designation of the year (CCYY)

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