How To Fix FINS_RECON355 - &1: Duplicate entry in table BSAS_BCK

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 355

• Message text: &1: Duplicate entry in table BSAS_BCK

What causes this issue?

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

System Response

How to fix this error?

Details about this issue (duplicate entry in index table) can be found
in the summary at the end of the application log (message number 365).

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_RECON355 - &1: Duplicate entry in table BSAS_BCK ?

  The SAP error message FINS_RECON355 with the description "Duplicate entry in table BSAS_BCK" typically indicates that there is a duplicate entry in the table that is used for storing accounting document information. This error often arises during the reconciliation process or when trying to post financial documents.
  Cause:
  
  
  Duplicate Entries: The primary cause of this error is the presence of duplicate entries in the BSAS_BCK table, which is used for storing line items for accounting documents. This can happen due to:
  
  Incorrect data uploads or migrations.
  Manual entries that inadvertently create duplicates.
  Issues with custom programs or enhancements that manipulate financial data.
  
  
  
  Data Consistency Issues: Sometimes, inconsistencies in the database or issues during data processing can lead to duplicates.
  
  
  Solution:
  
  
  Identify Duplicates: 
  
  Use SQL queries to check for duplicate entries in the BSAS_BCK table. You can run a query like:
  SELECT * FROM BSAS_BCK
  GROUP BY <relevant_columns>
  HAVING COUNT(*) > 1;
  
  Replace <relevant_columns> with the columns that define a unique entry in your context.
  
  
  
  Remove Duplicates: 
  
  Once identified, you can either delete the duplicate entries or correct them based on your business rules. Be cautious with deletions to avoid losing important data.
  
  
  
  Check Data Uploads: 
  
  If the duplicates were caused by data uploads, review the upload process to ensure that it includes checks for existing entries before inserting new ones.
  
  
  
  Review Custom Code: 
  
  If there are custom programs or enhancements that interact with financial data, review them to ensure they are not causing duplicates.
  
  
  
  Consult SAP Notes: 
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide guidance on handling duplicates in the BSAS_BCK table.
  
  
  
  Database Consistency Check: 
  
  Perform a database consistency check to ensure that there are no other underlying issues causing the duplicates.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary) to view the structure of the BSAS_BCK table and SE16 (Data Browser) to view the data.
  SAP Support: If the issue persists or if you are unsure about how to proceed, consider reaching out to SAP Support for assistance.
  Documentation: Review SAP documentation related to financial accounting and reconciliation processes for best practices and guidelines.
  
  Always ensure that you have proper backups and that you are following your organization's data management policies when making changes to the database.