How To Fix Q3146 - Creation of &1 not permitted: Custom code groups cannot start with 'UD'

SAP Error Message - Details

• Message type: E = Error

• Message class: Q3 - QM Master Data Messages: Catalogs

• Message number: 146

• Message text: Creation of &1 not permitted: Custom code groups cannot start with 'UD'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message Q3146 - Creation of &1 not permitted: Custom code groups cannot start with 'UD' ?

  The SAP error message Q3146 indicates that the creation of a custom code group is not permitted because the name of the custom code group starts with 'UD'. This restriction is in place to prevent conflicts with standard SAP code groups, which are reserved for system use.
  Cause:
  The error occurs when you attempt to create a custom code group in SAP with a name that begins with 'UD'. SAP has specific naming conventions and restrictions for custom code groups to ensure that they do not interfere with standard functionality or reserved namespaces.
  Solution:
  To resolve this error, you should rename your custom code group to ensure that it does not start with 'UD'. Here are the steps you can take:
  
  
  Choose a Different Prefix: Select a different prefix for your custom code group name that does not conflict with SAP's reserved prefixes. Common prefixes for custom development include 'Z' or 'Y'.
  
  
  Create the Custom Code Group: After renaming, attempt to create the custom code group again using the new name.
  
  
  Check Naming Conventions: Familiarize yourself with SAP's naming conventions for custom objects to avoid similar issues in the future.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on naming conventions and reserved namespaces.
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or updates regarding naming conventions and restrictions.
  Development Guidelines: Follow best practices for custom development in SAP, including proper naming conventions, to ensure maintainability and compatibility with future SAP updates.
  
  By adhering to these guidelines, you can avoid encountering this error in the future and ensure that your custom developments are compliant with SAP standards.