How To Fix FINS_RECON521 - &1: Entry in BSEG without corresponding entry in ACDOCA

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 521

• Message text: &1: Entry in BSEG without corresponding entry in ACDOCA

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FINS_RECON521 - &1: Entry in BSEG without corresponding entry in ACDOCA ?

  The SAP error message FINS_RECON521 indicates that there is an inconsistency between the line items in the BSEG table (which stores accounting document line items) and the ACDOCA table (which is part of the Universal Journal in SAP S/4HANA). Specifically, this error occurs when there is an entry in BSEG that does not have a corresponding entry in ACDOCA.
  Cause:
  
  Data Migration Issues: This error often arises during data migration from an older version of SAP (like SAP ECC) to SAP S/4HANA, where the data structures have changed.
  Manual Changes: If manual changes were made to the accounting documents or if there were issues during document posting, it could lead to inconsistencies.
  Custom Development: Custom programs or enhancements that manipulate accounting documents may inadvertently create inconsistencies.
  System Errors: Bugs or errors in the system during document processing can also lead to this issue.
  
  Solution:
  
  Check for Missing Entries: Use transaction codes like SE16 or SE11 to check the BSEG and ACDOCA tables for the specific document number mentioned in the error message. Identify the missing entries in ACDOCA.
  Repost Documents: If the entries are missing due to a migration issue, you may need to repost the affected documents to ensure that both BSEG and ACDOCA are in sync.
  Use SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that address this specific error. There may be patches or updates that resolve known issues.
  Data Consistency Check: Use transaction code FB03 to display the document and check for any inconsistencies. You can also run the program RFBIBL00 to check for inconsistencies in the accounting documents.
  Consult with SAP Support: If the issue persists, it may be necessary to consult with SAP Support for further assistance, especially if it involves complex data migration or custom developments.
  
  Related Information:
  
  BSEG Table: Contains line items for accounting documents in classic SAP systems.
  ACDOCA Table: Part of the Universal Journal in S/4HANA, which consolidates various financial data into a single table for better performance and reporting.
  Transaction Codes: Familiarize yourself with transaction codes like SE16, FB03, and SE11 for data inspection and troubleshooting.
  SAP Notes: Regularly check for updates and notes related to financial reconciliation and migration issues.
  
  By following these steps, you should be able to identify the root cause of the error and take appropriate action to resolve it.