How To Fix FIN_FB_RECON358 - Duplicate entry in table BSIK

SAP Error Message - Details

• Message type: E = Error

• Message class: FIN_FB_RECON - Conversion to S/4HANA: Reconciliation

• Message number: 358

• Message text: Duplicate entry in table BSIK

What causes this issue?

There are line items in table BSEG with duplicate entry in the index
table BSIK.

System Response

The system informs about this inconsistency which must be corrected in
your productive system before starting the data migration.

How to fix this error?

For more information, see
<DS:URLA.HTTPS://LAUNCHPAD.SUPPORT.SAP.COM/#/NOTES/2714344>SAP Note
2714344.</>

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FIN_FB_RECON358 - Duplicate entry in table BSIK ?

  The SAP error message FIN_FB_RECON358, which indicates a "Duplicate entry in table BSIK," typically arises during financial document processing, particularly when dealing with accounts payable. The BSIK table in SAP stores open items for vendor accounts, and a duplicate entry suggests that there are conflicting records for the same vendor and document combination.
  Cause:
  
  Data Entry Errors: Duplicate entries may occur due to manual data entry mistakes, where the same invoice or document is entered multiple times.
  System Issues: Bugs or issues in the system that lead to the same document being processed more than once.
  Integration Issues: If there are integrations with other systems (like EDI or third-party applications), they might send duplicate data.
  Batch Processing: If batch jobs are not properly managed, they might attempt to process the same document multiple times.
  
  Solution:
  
  
  Identify Duplicates: Use transaction codes like SE16 or SE11 to query the BSIK table and identify the duplicate entries. You can run a query to find entries with the same vendor and document number.
  Example SQL query:
  SELECT * FROM BSIK WHERE LIFNR = 'Vendor_Number' AND BELNR = 'Document_Number';
  
  
  Delete or Correct Duplicates: Once identified, you can either delete the duplicate entries (if they are truly duplicates) or correct them if they contain different information. Be cautious with deletions; ensure that you have backups and that you understand the implications of removing entries.
  
  
  Check for System Errors: Review system logs and error messages to identify if there were any issues during document posting that might have caused duplicates.
  
  
  Review Integration Processes: If the duplicates are coming from an external system, review the integration processes to ensure that they are not sending duplicate data.
  
  
  Implement Validation Checks: To prevent future occurrences, consider implementing validation checks in your data entry processes or in the integration layer to catch duplicates before they are posted to the BSIK table.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide patches or updates that could resolve underlying issues.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like FB03 (Display Document), FBL1N (Vendor Line Item Display), and SE16 (Data Browser) for managing and reviewing financial documents.
  SAP Support: If the issue persists or if you are unsure about how to proceed, consider reaching out to SAP support or your internal SAP team for assistance.
  Documentation: Review SAP documentation related to financial accounting and the BSIK table for a deeper understanding of how it functions and how to manage entries effectively.
  
  By following these steps, you should be able to resolve the FIN_FB_RECON358 error and prevent it from occurring in the future.