How To Fix GB138 - Naming convention not observed

SAP Error Message - Details

• Message type: E = Error

• Message class: GB - Messages used by the Boolean code generator

• Message number: 138

• Message text: Naming convention not observed

What causes this issue?

You have not complied with the input conventions when entering the name
of a rule.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter a different rule name.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GB138 - Naming convention not observed ?

  The SAP error message GB138, which states "Naming convention not observed," typically occurs when there is a violation of the naming conventions set by the system for certain objects, such as database tables, fields, or other elements. This error is often encountered during the development of ABAP programs, data dictionary objects, or when creating custom objects in SAP.
  Cause:
  
  Invalid Naming: The object name does not conform to the naming conventions defined by SAP. For example, it may start with a number, contain special characters, or exceed the maximum length.
  Reserved Names: The name may conflict with reserved keywords or existing SAP objects.
  Namespace Issues: If you are working in a system that uses namespaces, the object name may not be prefixed correctly.
  
  Solution:
  
  
  Check Naming Conventions: Ensure that the object name adheres to the SAP naming conventions:
  
  Must start with a letter (A-Z or a-z).
  Can contain letters, numbers (0-9), and underscores (_).
  Should not exceed the maximum length (usually 30 characters for most objects).
  Avoid using reserved keywords or names that are already in use.
  
  
  
  Use Correct Namespace: If your system uses namespaces, ensure that the object name is prefixed with the appropriate namespace.
  
  
  Rename the Object: If the object name is invalid, rename it to comply with the naming conventions.
  
  
  Check for Conflicts: Verify that the name does not conflict with existing SAP objects or reserved names.
  
  
  Consult Documentation: Refer to SAP documentation or guidelines for naming conventions specific to the type of object you are creating.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or updates related to this error message.
  Development Guidelines: Familiarize yourself with SAP's development guidelines and best practices for naming conventions.
  Testing: After making changes, test the object creation or modification again to ensure that the error is resolved.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis or development team for further assistance.