How To Fix OMOD_GUI_CUST005 - Entry in SAP naming space 'S' is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: OMOD_GUI_CUST - OM: GUI: Customizing

• Message number: 005

• Message text: Entry in SAP naming space 'S' 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 OMOD_GUI_CUST005 - Entry in SAP naming space 'S' is not allowed ?

  The SAP error message OMOD_GUI_CUST005 indicates that there is an issue with the naming convention used for a custom object in the SAP system. Specifically, the error states that an entry in the SAP naming space 'S' is not allowed. This typically occurs when a user attempts to create or modify a custom object (like a function module, class, or other development objects) using a name that is reserved or not compliant with SAP's naming conventions.
  Cause:
  
  Naming Convention Violation: SAP has specific naming conventions for different types of objects. The 'S' namespace is reserved for SAP standard objects, and custom objects should not use this namespace.
  Incorrect Object Type: The object being created or modified may not be of the correct type or may be incorrectly categorized.
  Development Class Issues: If the object is being created in a development class that is not set up correctly or is not allowed to contain custom objects, this error may occur.
  
  Solution:
  
  Use a Valid Namespace: Ensure that the name of the custom object does not start with 'S'. Instead, use a valid namespace for custom developments, such as 'Z' or 'Y', which are typically reserved for customer-specific developments.
  Check Object Type: Verify that you are creating the correct type of object and that it adheres to the naming conventions for that object type.
  Review Development Class: If applicable, check the development class where you are trying to create the object. Ensure that it is set up to allow custom objects and that you have the necessary authorizations.
  Consult Documentation: Refer to SAP documentation or guidelines regarding naming conventions and object creation to ensure compliance.
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for various object types. This information can usually be found in the SAP Help Portal or in the documentation specific to your SAP version.
  Authorization Issues: Sometimes, authorization issues can also lead to errors when creating or modifying objects. Ensure that you have the necessary permissions to create objects in the specified namespace.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on naming conventions and object creation.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis or development team for further assistance.