How To Fix CNV21500020 - Structure &1 of component &2 is not defined in DDIC.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV21500 - Messages for HR conversions basis

• Message number: 020

• Message text: Structure &1 of component &2 is not defined in DDIC.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV21500020 - Structure &1 of component &2 is not defined in DDIC. ?

  The SAP error message CNV21500020 indicates that a specific structure (denoted as &1) of a component (denoted as &2) is not defined in the Data Dictionary (DDIC). This error typically arises during data migration or conversion processes, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  
  
  Missing Structure Definition: The structure that the system is trying to access does not exist in the Data Dictionary. This could be due to:
  
  The structure not being created or activated.
  The structure being deleted or not transported correctly from the development environment to the production environment.
  A mismatch in the version of the component being used.
  
  
  
  Incorrect Configuration: The configuration settings for the migration or conversion process may be incorrect, leading the system to look for a structure that is not available.
  
  
  Transport Issues: If the component was recently transported, there may have been issues during the transport process that caused the structure to not be included.
  
  
  Solution:
  
  
  Check Structure Definition:
  
  Go to the Data Dictionary (transaction SE11) and check if the structure &1 exists for the component &2.
  If it does not exist, you may need to create it or ensure that it is properly defined.
  
  
  
  Transport Requests:
  
  If the structure is missing, check the transport requests to ensure that the structure was included in the transport from the development system to the production system.
  If it was not transported, you may need to create a new transport request to include the missing structure.
  
  
  
  Recheck Configuration:
  
  Review the configuration settings for the migration or conversion process to ensure that they are correct and that they point to the right structures.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation related to the specific migration or conversion process you are using. There may be specific prerequisites or steps that need to be followed.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), ST22 (Dump Analysis), SLG1 (Application Log).
  Migration Tools: Familiarize yourself with the specific migration tools you are using, as they may have their own set of requirements and configurations.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.