How To Fix CNV_10520034 - Starting merge simulation with &1 reconciliation keys

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10520 - Conversion module of FI-CA FIKEY-logic

• Message number: 034

• Message text: Starting merge simulation with &1 reconciliation keys

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10520034 - Starting merge simulation with &1 reconciliation keys ?

  The SAP error message CNV_10520034, which states "Starting merge simulation with &1 reconciliation keys," typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This message indicates that there is an issue related to the reconciliation keys during the merge simulation phase of the data migration.
  Cause:
  
  Reconciliation Key Issues: The error often arises when there are inconsistencies or issues with the reconciliation keys in the source data. This could be due to duplicate keys, missing keys, or keys that do not match the expected format.
  Data Quality Problems: Poor data quality in the source system can lead to issues during the merge simulation, such as invalid or incomplete records.
  Configuration Issues: Incorrect configuration settings in the migration cockpit or the data mapping can also lead to this error.
  
  Solution:
  
  Check Reconciliation Keys: Review the reconciliation keys in the source data. Ensure that they are unique and correctly formatted. Look for duplicates or missing keys that could cause issues during the merge simulation.
  Data Cleansing: Perform data cleansing on the source data to resolve any inconsistencies. This may involve removing duplicates, correcting formats, and ensuring that all required fields are populated.
  Review Migration Settings: Check the configuration settings in the migration cockpit. Ensure that the mapping of fields and reconciliation keys is correctly set up according to the requirements of the target system.
  Run Simulation Again: After making the necessary corrections, run the merge simulation again to see if the issue persists.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration process you are using. There may be additional guidelines or troubleshooting steps provided by SAP.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may provide insights into handling reconciliation keys and data migration best practices.
  Community Forums: Consider searching or posting in SAP community forums or SAP support channels for additional insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to engage with SAP support for more specialized assistance.