How To Fix CNV_20800040 - No (relevant) CNVTABLES entry for table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 040

• Message text: No (relevant) CNVTABLES entry for table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20800040 - No (relevant) CNVTABLES entry for table &1 ?

  The SAP error message CNV_20800040 indicates that there is no relevant entry in the CNVTABLES for the specified table (&1). This error typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services tools.
  Cause:
  
  Missing CNVTABLES Entry: The primary cause of this error is that the system is trying to access a conversion table (CNVTABLES) for a specific database table, but there is no entry available for that table in the CNVTABLES.
  Incorrect Configuration: The configuration for the data migration or conversion process may not be set up correctly, leading to the system not being able to find the necessary mapping.
  Version Mismatch: The version of the source or target system may not match the expected version for the migration, leading to missing entries.
  Custom Tables: If the table in question is a custom table, it may not have been included in the migration setup.
  
  Solution:
  
  Check CNVTABLES: Verify that the CNVTABLES entry for the specified table exists. You can do this by checking the relevant entries in the CNVTABLES table (transaction code SE11 or SE16).
  Create Missing Entry: If the entry is missing, you may need to create it. This involves defining the mapping for the source and target fields for the table in question.
  Review Migration Configuration: Ensure that the migration configuration is set up correctly and that all necessary tables are included in the migration process.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using (e.g., SAP Data Services, SLT) to ensure that you are following the correct procedures.
  Check for Updates: Ensure that your SAP system is up to date with the latest support packages and notes, as there may be fixes or enhancements related to the migration process.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a production environment.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), or CNV_20800 (for migration-related activities) to investigate the issue further.
  SAP Notes: Check for relevant SAP Notes that may address this specific error or provide guidance on data migration issues.
  Migration Tools: Familiarize yourself with the specific migration tools you are using, as they may have unique requirements or configurations.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.