How To Fix DMU170 - Label &1 contains illegal characters

SAP Error Message - Details

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 170

• Message text: Label &1 contains illegal characters

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU170 - Label &1 contains illegal characters ?

  The SAP error message DMU170, which states "Label &1 contains illegal characters," typically occurs in the context of data management or data migration processes, particularly when dealing with labels or identifiers that do not conform to the expected format.
  Cause:
  The error is triggered when a label (which could be a name, identifier, or any string) contains characters that are not allowed by the system. This can include:
  
  Special characters (e.g., @, #, $, %, &, etc.)
  Spaces or leading/trailing spaces
  Non-alphanumeric characters
  Characters that exceed the maximum length allowed for the label
  
  Solution:
  To resolve the DMU170 error, you can take the following steps:
  
  
  Identify the Label: Check the specific label mentioned in the error message (indicated by &1). This will help you locate the problematic entry.
  
  
  Review the Characters: Examine the label for any illegal characters. Ensure that it only contains valid characters, which typically include:
  
  Alphanumeric characters (A-Z, a-z, 0-9)
  Underscores (_) or hyphens (-), if allowed by your system's naming conventions
  
  
  
  Modify the Label: If you find any illegal characters, modify the label to remove or replace them with valid characters. Ensure that the label adheres to any length restrictions.
  
  
  Test the Changes: After making the necessary modifications, re-run the process that triggered the error to see if the issue is resolved.
  
  
  Consult Documentation: If you are unsure about the allowed characters or naming conventions, refer to the SAP documentation or guidelines specific to your version and module.
  
  
  Check Configuration: In some cases, the configuration settings in your SAP system may impose additional restrictions. Review any relevant configuration settings that might affect label naming.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP Notes can provide additional context or solutions.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Testing Environment: If possible, test changes in a development or testing environment before applying them to production to avoid disruptions.
  
  By following these steps, you should be able to resolve the DMU170 error and ensure that your labels conform to the required standards.