How To Fix FKKBIX2013 - 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: 013

• 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&, an unreversed <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.
The item was transferred nonetheless, since the item was released for
billing by the <DS:DE.BIT_DCFUNCNAME_KK>function module</> entered on
schema &v2&.

System Response

The billable item was transferred.

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 FKKBIX2013 - Item for source trans. &1 is a duplicate according to check schema &2 ?

  The SAP error message FKKBIX2013 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 accounts payable or accounts receivable.
  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 item has been entered multiple times in the transaction.
  Incorrect Configuration: The check schema may be configured in a way that does not allow for certain duplicates, even if they are valid in other contexts.
  Data Migration Issues: If data has been migrated from another system, duplicates may have been inadvertently created.
  User Error: Users may have inadvertently entered the same transaction multiple times.
  
  Solution:
  To resolve the FKKBIX2013 error, you can take the following steps:
  
  
  Identify Duplicates: Check the transaction data to identify if the item in question is indeed a duplicate. You can do this by querying the relevant tables (e.g., BKPF, BSEG) to see if the item already exists.
  
  
  Review Check Schema: Examine the check schema (&2) to understand the rules that are causing the duplication error. You may need to adjust the schema if it is too restrictive.
  
  
  Correct Data Entry: If duplicates are found, determine which entry is valid and remove or correct the duplicate entries.
  
  
  Data Cleanup: If the issue is due to data migration, consider running a data cleanup process to remove duplicates from the database.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling this error in your version of SAP.
  
  
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE11 (Data Dictionary) to check table structures or SE16 (Data Browser) to view data in tables.
  Check Schema Configuration: You can review the configuration of the check schema in the customizing settings (transaction SPRO).
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the FKKBIX2013 error and implement a solution to resolve it.