How To Fix CNV20551458 - Error; structure field length 0 is not allowed (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 458

• Message text: Error; structure field length 0 is not allowed (&)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551458 - Error; structure field length 0 is not allowed (&) ?

  The SAP error message CNV20551458, which indicates that a structure field length of 0 is not allowed, typically arises during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of certain programs that involve data structures.
  Cause:
  
  Empty Field Definition: The error usually occurs when a field in a data structure is defined with a length of 0. This can happen if the data model or mapping configuration is incorrect or if there is a missing or improperly defined field in the source data.
  Data Mapping Issues: If the data being migrated does not match the expected structure in the target system, it can lead to fields being interpreted as having a length of 0.
  Configuration Errors: Incorrect configuration in the migration tool or program can lead to this error, especially if the structure definitions are not aligned with the source data.
  
  Solution:
  
  Check Field Definitions: Review the structure definitions in the data model or mapping configuration. Ensure that all fields have valid lengths defined and that none are set to 0.
  Data Mapping Review: Verify the data mapping between the source and target systems. Ensure that all fields are correctly mapped and that there are no missing fields.
  Adjust Configuration: If you are using a migration tool, check the configuration settings to ensure that they are set up correctly. This may involve adjusting the settings to match the source data structure.
  Data Validation: Before running the migration, validate the source data to ensure that it conforms to the expected structure and that there are no empty fields that could lead to this error.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool or process you are using. There may be specific guidelines or known issues that can help resolve the error.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Tools: Familiarize yourself with the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, LSMW, etc.) and its documentation for best practices and common issues.
  Community Forums: Consider searching or posting in SAP community forums or support channels, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the root cause of the CNV20551458 error and implement a solution to resolve it.