How To Fix FKKBIX2009 - Item for source trans. &1 is a duplicate according to check schema &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKBIX2 - Billing in Contract Accounts Receivable and Payable

• Message number: 009

• Message text: Item for source trans. &1 is a duplicate according to check schema &2

What causes this issue?

For the item being transferred of business partner &v3& with source
transaction &v1&, a <DS:TX.FKKBIX_BIT>billable item</> already exists,
which, according to the <DS:DE.BIT_DCFIELD_KK>comparison fields</>
entered in <DS:DE.BIT_DCSCHEMA_KK>check schema</> &v2& for the duplicate
check, is identical with the item being transferred.
In addition, the reversal indicator is set for the already existing
item. Therefore, the item being transferred is stored in the table of
<DS:DE.BITSTATUS_KK>raw data</>, in order to make it possible to
transfer this item after the original item is reversed.

System Response

The system treats the item being transferred in this way based on
<DS:DE.BIT_DCPROCRULE_KK>processing rule</> 2.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKKBIX2009 - Item for source trans. &1 is a duplicate according to check schema &2 ?

  The SAP error message FKKBIX2009 indicates that there is a duplicate item in the context of a source transaction, which is being checked against a specified check schema. This error typically arises during the processing of financial documents, particularly in the context of invoice verification or payment processing.
  
  Cause:
  The error occurs when the system detects that an item being processed (identified by the source transaction number) is already present in the system according to the rules defined in the check schema. This can happen due to:
  
  Duplicate Entries: The same invoice or payment document has been entered multiple times.
  Incorrect Data Entry: Data might have been entered incorrectly, leading to the system interpreting it as a duplicate.
  
  Configuration Issues: The check schema may be configured in a way that is too strict or not aligned with business processes, causing legitimate entries to be flagged as duplicates.
  
  
  Solution:
  To resolve the FKKBIX2009 error, you can take the