How To Fix CNV_DMC_MC_EXCEPTION044 - Structure tree can only contain letters, numbers, or underscores

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

• Message number: 044

• Message text: Structure tree can only contain letters, numbers, or underscores

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION044 - Structure tree can only contain letters, numbers, or underscores ?

  The SAP error message CNV_DMC_MC_EXCEPTION044 indicates that there is an issue with the naming convention of a structure tree in the Data Migration Cockpit (DMC). Specifically, the error states that the structure tree can only contain letters, numbers, or underscores. This typically occurs when the name of a structure tree includes invalid characters such as spaces, special characters, or punctuation.
  Cause:
  
  Invalid Characters: The name of the structure tree may contain characters that are not allowed, such as spaces, hyphens, or special symbols.
  Naming Convention Violation: The naming convention for structure trees in SAP requires that names consist solely of alphanumeric characters (A-Z, 0-9) and underscores (_).
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Check the Structure Tree Name: Review the name of the structure tree that is causing the error. Ensure that it only contains letters (A-Z, a-z), numbers (0-9), and underscores (_).
  
  
  Rename the Structure Tree: If the name contains invalid characters, rename the structure tree to comply with the naming conventions. For example:
  
  Change My Structure Tree to My_Structure_Tree
  Change Tree-1 to Tree_1
  
  
  
  Validate Changes: After renaming, validate the structure tree again in the Data Migration Cockpit to ensure that the error is resolved.
  
  
  Test the Migration: Once the structure tree name is corrected, proceed with the data migration process to confirm that the issue has been resolved.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the Data Migration Cockpit for guidelines on naming conventions and structure tree configurations.
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other users who may have encountered similar issues.
  Error Handling: Familiarize yourself with common error messages in the Data Migration Cockpit to better understand and troubleshoot issues in the future.
  
  By ensuring that all names adhere to the specified conventions, you can avoid this error and facilitate a smoother data migration process.