How To Fix CNV_10020774 - &1 &2: incorrect rule assignment for evaluation of nested component &3

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 774

• Message text: &1 &2: incorrect rule assignment for evaluation of nested component &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020774 - &1 &2: incorrect rule assignment for evaluation of nested component &3 ?

  The SAP error message CNV_10020774 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This specific error indicates that there is an incorrect rule assignment for the evaluation of a nested component in the data being processed.
  Cause:
  
  Incorrect Mapping: The error often arises when there is a mismatch in the mapping of fields or components in the data structure. This can happen if the source data does not align with the expected structure in the target system.
  Nested Components: If the data being migrated includes nested components (like sub-structures or complex data types), and the rules for evaluating these components are not correctly defined or assigned, this error can occur.
  Configuration Issues: There may be issues in the configuration of the migration project, such as missing or incorrect transformation rules for the nested components.
  
  Solution:
  
  Review Mapping Rules: Check the mapping rules defined for the migration project. Ensure that all fields, especially nested components, are correctly mapped to their corresponding target fields.
  Validate Data Structure: Ensure that the source data structure matches the expected target structure. If there are discrepancies, you may need to adjust the source data or the mapping rules accordingly.
  Check Transformation Rules: If you are using transformation rules for nested components, verify that these rules are correctly defined and applied. Make sure that the rules are capable of handling the nested structure.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be guidelines or best practices for handling nested components that can help resolve the issue.
  Testing: After making adjustments, perform a test migration with a small subset of data to ensure that the changes have resolved the error before proceeding with a full migration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling nested components during migration.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues. They can provide insights or solutions based on their experiences.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide more detailed troubleshooting based on your specific system configuration and migration scenario.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.