How To Fix CL154 - Name & is reserved

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 154

• Message text: Name & is reserved

What causes this issue?

Objects that start with &V1& that start with &V1& are in a reserved
name range.

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

System Response

How to fix this error?

Change the name of the object accordingly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL154 - Name & is reserved ?

  The SAP error message CL154 ("Name & is reserved") typically occurs when you attempt to create or modify an object (like a class, method, or function) in the ABAP Workbench, and the name you are trying to use is reserved by the SAP system. This can happen for various reasons, such as:
  Cause:
  
  Reserved Names: Certain names are reserved by SAP for standard objects, and using them for custom development is not allowed.
  Naming Conventions: SAP has specific naming conventions for different types of objects. For example, names starting with certain prefixes (like 'Z' or 'Y' for custom objects) are generally allowed, while others are not.
  Existing Objects: The name you are trying to use might already be in use by another object in the system.
  
  Solution:
  
  Choose a Different Name: The simplest solution is to select a different name for your object that adheres to SAP's naming conventions. Ensure that it does not conflict with reserved names or existing objects.
  Check Naming Conventions: Familiarize yourself with SAP's naming conventions for the type of object you are creating. For example, custom classes should typically start with 'Z' or 'Y'.
  Use Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE11 (Data Dictionary) to check for existing objects and their names.
  Consult Documentation: Refer to SAP documentation or the SAP Help Portal for guidelines on naming conventions and reserved names.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific information related to the error message CL154. Sometimes, there are updates or patches that address specific issues.
  Development Guidelines: Review the development guidelines provided by your organization or SAP to ensure compliance with best practices.
  Community Forums: Engage with SAP community forums or SAP support for additional insights or similar experiences from other developers.
  
  By following these steps, you should be able to resolve the CL154 error and continue with your development work in SAP.