How To Fix FINS_RECON811 - Mismatch of Field AWKEY and BELNR/REFBN in COBK: &1 message(s)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 811

• Message text: Mismatch of Field AWKEY and BELNR/REFBN in COBK: &1 message(s)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FINS_RECON811 - Mismatch of Field AWKEY and BELNR/REFBN in COBK: &1 message(s) ?

  The SAP error message FINS_RECON811 indicates a mismatch between the fields AWKEY and BELNR/REFBN in the table COBK. This error typically arises during the reconciliation process in financial accounting, particularly when there are inconsistencies in the document numbers or reference numbers used in the system.
  Cause:
  
  
  Data Inconsistency: The most common cause of this error is a mismatch in the document numbers (BELNR) or reference numbers (REFBN) in the COBK table. This can happen due to:
  
  Manual data entry errors.
  Data migration issues where documents were not correctly transferred.
  Incomplete or incorrect postings in financial transactions.
  Deletion or modification of documents that were expected to be present.
  
  
  
  Configuration Issues: Sometimes, the configuration settings in the SAP system may not align with the expected data structure, leading to mismatches.
  
  
  Custom Developments: If there are custom programs or enhancements that manipulate financial documents, they may inadvertently cause inconsistencies.
  
  
  Solution:
  
  
  Data Validation: Check the entries in the COBK table for the specific document numbers (BELNR) and reference numbers (REFBN) to identify any discrepancies. You can use transaction codes like SE16 or SE11 to view the table data.
  
  
  Reconcile Data: Ensure that all financial documents are correctly posted and that there are no missing or incorrectly referenced documents. This may involve:
  
  Running reconciliation reports to identify discrepancies.
  Correcting any erroneous entries in the database.
  
  
  
  Check Custom Code: If there are any custom developments, review the code to ensure it is not causing the mismatch. Debugging may be necessary to trace the flow of data.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  System Configuration: Review the configuration settings related to financial accounting and controlling to ensure they are set up correctly.
  
  
  Engage SAP Support: If the issue persists and cannot be resolved internally, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including transaction codes, document numbers, and any relevant logs.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like FB03 (Display Document), FBL1N (Vendor Line Item Display), and FBL3N (G/L Account Line Item Display) to analyze the documents involved.
  Tables: Understand the structure of related tables such as COBK (CO Document Header), BKPF (Accounting Document Header), and BSEG (Accounting Document Segment) for a comprehensive analysis.
  Reconciliation Reports: Utilize standard SAP reconciliation reports to identify discrepancies in financial postings.
  
  By following these steps, you should be able to identify the root cause of the FINS_RECON811 error and implement a solution to resolve it.