How To Fix CNV_MBT491 - According Execution Phase Step Parameter modified

CNV_MBT491 - Overview

• 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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CNV_MBT491 - Details

• 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