How To Fix CNV_MBT491 - According Execution Phase Step Parameter modified

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 491

• Message text: According Execution Phase Step Parameter modified

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT491 - According Execution Phase Step Parameter modified ?

  The SAP error message CNV_MBT491 typically occurs during the execution of a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a parameter related to the execution phase has been modified, which can disrupt the migration process.
  Cause:
  
  Parameter Changes: The error is often triggered when a parameter that is expected to remain constant during the execution phase has been altered. This could happen due to manual changes made by users or due to inconsistencies in the migration configuration.
  Inconsistent Data: If the data being migrated has inconsistencies or does not meet the expected format or criteria, it can lead to this error.
  Version Mismatch: Using different versions of migration tools or components can also lead to unexpected behavior and errors.
  
  Solution:
  
  Check Parameters: Review the parameters set for the execution phase. Ensure that no changes have been made after the execution has started. If changes are necessary, it may require restarting the migration process.
  Consistency Check: Perform a consistency check on the data being migrated. Ensure that all data meets the required formats and criteria.
  Log Review: Check the logs for more detailed error messages or warnings that can provide additional context on what might have caused the parameter modification.
  Restart Migration: If the parameters were modified unintentionally, you may need to restart the migration process from the beginning after correcting the parameters.
  Consult Documentation: Refer to the official SAP documentation for the specific migration tool you are using. There may be specific guidelines or troubleshooting steps provided for this error.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide insights based on the specific context of your migration scenario.
  
  Related Information:
  
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its configuration settings.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide updates and patches.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the CNV_MBT491 error and implement a solution to resolve it.