How To Fix CNV_DMC_MC074 - Cannot switch to edit mode; rule is not based on free code

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 074

• Message text: Cannot switch to edit mode; rule is not based on free code

This rule is not based on free code.
Internal rules and event-based rules must be based on free code. If you
want to use a rule with this name in the SAP migration object modeler,
you need to delete this rule and create a new one that is based on free
code.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC074 - Cannot switch to edit mode; rule is not based on free code ?

  The SAP error message CNV_DMC_MC074 indicates that you are trying to switch to edit mode for a transformation rule in the Data Migration Cockpit (DMC), but the rule you are attempting to edit is not based on free code. This typically occurs in the context of data migration projects where transformation rules are defined for data mapping and conversion.
  Cause:
  
  Rule Type: The transformation rule you are trying to edit is likely a predefined or standard rule that does not allow modifications. In DMC, certain rules are locked to ensure data integrity and consistency.
  Configuration Settings: The system may be configured to restrict editing of certain rules to prevent accidental changes that could affect data migration.
  User Permissions: The user may not have the necessary permissions to edit the transformation rules.
  
  Solution:
  
  Check Rule Type: Verify if the rule is indeed a standard rule. If it is, you may need to create a new rule based on free code or copy the existing rule and modify the copy.
  Create a Custom Rule: If you need to implement specific logic, consider creating a new transformation rule that is based on free code. This allows you to define your own logic without restrictions.
  Review Permissions: Ensure that your user role has the necessary permissions to edit transformation rules. You may need to consult with your SAP administrator to adjust your permissions if required.
  Consult Documentation: Refer to the SAP documentation or help resources for the Data Migration Cockpit to understand the limitations and capabilities of transformation rules.
  
  Related Information:
  
  Data Migration Cockpit (DMC): A tool used in SAP for migrating data from legacy systems to SAP systems. It provides functionalities for mapping, transforming, and validating data.
  Transformation Rules: These are defined to map data from source to target during the migration process. They can be based on standard logic or custom logic (free code).
  SAP Notes and Support: If the issue persists, consider checking SAP Notes for any known issues or patches related to this error message. You can also reach out to SAP Support for further assistance.
  
  By following these steps, you should be able to address the error CNV_DMC_MC074 and proceed with your data migration tasks.