How To Fix FIN_FB_RECON361 - Duplicate entry in table FAGLBSAS

FIN_FB_RECON361 - Overview

• Message type: E = Error

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

• Message number: 361

• Message text: Duplicate entry in table FAGLBSAS

What causes this issue?

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

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.

FIN_FB_RECON361 - Details

• The SAP error message FIN_FB_RECON361 indicates that there is a duplicate entry in the table FAGLBSAS (the General Ledger (G/L) balance sheet account line item table). This error typically arises during the reconciliation process or when trying to post financial documents that affect the G/L accounts.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Duplicate Posting: There may be an attempt to post a financial document that has already been posted, leading to duplicate entries in the FAGLBSAS table.
  Data Consistency Issues: There might be inconsistencies in the data due to manual entries, incorrect data migration, or issues during the closing process.
  Custom Code or Enhancements: If there are custom programs or enhancements that manipulate G/L postings, they might inadvertently create duplicate entries.
  
  
  Solution:
  To resolve the FIN_FB_RECON361 error, you can follow these steps:
  
  
  Identify Duplicate Entries:
  
  Use transaction code SE16N or SE11 to access the FAGLBSAS table.
  Execute a query to find duplicate entries based