How To Fix FINS_RECON370 - Duplicate entry in table FAGLBSIS_BCK: &1 message(s)

SAP Error Message - Details

• Message type: E = Error

• Message class: FINS_RECON - SAP S/4HANA Finance Migration: Reconciliation

• Message number: 370

• Message text: Duplicate entry in table FAGLBSIS_BCK: &1 message(s)

What causes this issue?

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

System Response

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

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 FINS_RECON370 - Duplicate entry in table FAGLBSIS_BCK: &1 message(s) ?

  The SAP error message FINS_RECON370 indicates that there is a duplicate entry in the table FAGLBSIS_BCK. This table is typically used in the context of the General Ledger (G/L) accounting module in SAP, particularly for storing line items related to the balance sheet.
  Cause:
  The error usually occurs due to one of the following reasons:
  
  Data Migration Issues: If data was migrated from another system or during a system upgrade, duplicate entries may have been inadvertently created.
  Incorrect Posting Logic: If there are issues in the posting logic or if the same transaction is being processed multiple times, it can lead to duplicates.
  Concurrency Issues: If multiple users or processes are trying to post the same data simultaneously, it may result in duplicate entries.
  Custom Code: If there are custom programs or enhancements that manipulate the data in the FAGLBSIS_BCK table, they may not be handling duplicates correctly.
  
  Solution:
  To resolve the issue, you can take the following steps:
  
  
  Identify Duplicates:
  
  Use SQL queries or transaction codes (like SE16 or SE11) to check the FAGLBSIS_BCK table for duplicate entries. You can look for entries with the same key fields (like document number, fiscal year, etc.).
  
  
  
  Remove Duplicates:
  
  If you find duplicates, you may need to delete the extra entries. However, be cautious and ensure that you have backups and that you understand the implications of deleting data from this table.
  
  
  
  Check Posting Logic:
  
  Review the posting logic in your system to ensure that it is not allowing duplicate entries. This may involve checking custom code, user exits, or BAdIs that could be affecting the posting process.
  
  
  
  Data Consistency Check:
  
  Run consistency checks in the system to ensure that all related tables are in sync and that there are no other underlying issues.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on how to handle it.
  
  
  
  Engage SAP Support:
  
  If the issue persists or if you are unsure about how to proceed, consider reaching out to SAP Support for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE16 (Data Browser) to view the contents of the FAGLBSIS_BCK table.
  Backup: Always ensure that you have a backup of your data before making any changes to the database.
  Testing: After resolving the issue, conduct thorough testing to ensure that the changes do not affect other functionalities in the system.
  
  By following these steps, you should be able to identify and resolve the duplicate entry issue in the FAGLBSIS_BCK table.