How To Fix CNV_10020258 - Selected DTFLD entries get different tables

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 258

• Message text: Selected DTFLD entries get different tables

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020258 - Selected DTFLD entries get different tables ?

  The SAP error message CNV_10020258 typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services tools. This error indicates that the selected entries for a specific data field (DTFLD) are being mapped to different database tables, which can lead to inconsistencies and issues during the data migration process.
  Cause:
  
  
  Inconsistent Mapping: The primary cause of this error is that the data field (DTFLD) you are trying to migrate or convert is associated with multiple tables in the source system. This inconsistency can arise from:
  
  Different versions of the same data field being stored in different tables.
  Incorrect configuration or mapping in the migration tool.
  Data model changes that have not been reflected in the migration settings.
  
  
  
  Data Model Changes: If there have been changes in the data model (e.g., new tables added, existing tables modified), the migration tool may not be aware of these changes, leading to conflicts.
  
  
  Configuration Issues: Incorrect configuration settings in the migration tool can also lead to this error, especially if the tool is not set up to handle multiple mappings correctly.
  
  
  Solution:
  
  
  Review Data Mapping: Check the mapping configuration in the migration tool to ensure that the data field (DTFLD) is consistently mapped to the correct table. Make sure that there are no conflicting mappings.
  
  
  Consolidate Data Sources: If the same data field is present in multiple tables, consider consolidating the data into a single source table before migration. This can help eliminate conflicts.
  
  
  Update Migration Settings: If there have been changes in the data model, update the migration settings to reflect these changes. Ensure that the tool is aware of the current structure of the source system.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using (e.g., SLT, Data Services) for guidance on handling such errors. There may be specific recommendations or best practices for your scenario.
  
  
  Testing: After making changes, conduct thorough testing to ensure that the migration process works as expected without triggering the error.
  
  
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific environment and configuration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Tools Documentation: Review the official documentation for the migration tools you are using, as they often contain troubleshooting sections for common errors.
  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 root cause of the error and implement a solution to resolve it.