How To Fix CNV_PE490 - Not allowed to change execution rule step

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 490

• Message text: Not allowed to change execution rule step

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE490 - Not allowed to change execution rule step ?

  The SAP error message CNV_PE490 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 there is an attempt to change the execution rule of a step that is not allowed to be modified at that point in the process.
  Cause:
  
  Execution Rule Restrictions: The execution rules for certain steps in the migration process are predefined and cannot be altered once the process has started. This is to ensure data integrity and consistency during the migration.
  Incorrect Process Flow: The error may arise if the user attempts to change the execution order or rules after the migration process has already begun or if the step is locked due to dependencies on previous steps.
  User Permissions: The user may not have the necessary permissions to change execution rules, leading to this error.
  
  Solution:
  
  Check Process Status: Ensure that the migration process is in a state that allows for changes. If the process has already started, you may need to stop it and restart it to make changes.
  Review Execution Rules: Familiarize yourself with the execution rules for the specific migration steps you are working with. Refer to the documentation for the migration tool you are using to understand which steps can be modified.
  User Permissions: Verify that you have the appropriate permissions to make changes to the execution rules. If not, contact your system administrator to obtain the necessary access.
  Consult Documentation: Review the SAP documentation or notes related to the specific migration tool you are using. There may be specific guidelines or restrictions that apply to your scenario.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. They can provide insights based on the specific context of your migration process.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  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 address the CNV_PE490 error and proceed with your data migration or conversion process.