How To Fix CNV20212020 - Failed to load mapping table for mapping template &1 with namespace &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20212 - Messages for development class CNV_20212

• Message number: 020

• Message text: Failed to load mapping table for mapping template &1 with namespace &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20212020 - Failed to load mapping table for mapping template &1 with namespace &2 ?

  The SAP error message CNV20212020 indicates that there was a failure in loading a mapping table for a specific mapping template identified by &1 (the mapping template name) and &2 (the namespace). This error typically occurs in the context of data migration or conversion processes, particularly when using SAP's Conversion Tools or Data Migration tools.
  Causes:
  
  Missing Mapping Table: The mapping table that is supposed to be loaded does not exist in the specified namespace.
  Incorrect Namespace: The namespace provided may be incorrect or not properly defined in the system.
  Authorization Issues: The user executing the process may not have the necessary authorizations to access the mapping table.
  Configuration Issues: There may be configuration issues in the migration tool or the environment that prevent the mapping table from being loaded.
  Corrupted Data: The mapping table or its associated data may be corrupted or improperly formatted.
  
  Solutions:
  
  Verify Mapping Table Existence: Check if the mapping table exists in the specified namespace. You can do this by navigating to the relevant transaction or using the appropriate data dictionary tools.
  Check Namespace: Ensure that the namespace provided in the error message is correct. If it is incorrect, update it to the correct namespace.
  User Authorizations: Verify that the user has the necessary authorizations to access the mapping table. If not, adjust the user roles or permissions accordingly.
  Review Configuration: Check the configuration settings of the migration tool to ensure that everything is set up correctly. This may involve reviewing the settings in the relevant transaction codes or configuration screens.
  Data Integrity Check: If the mapping table exists but is not loading, check for data integrity issues. This may involve looking for corrupted entries or inconsistencies in the data.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any additional troubleshooting steps or known issues.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or specific migration-related transactions.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.