How To Fix COM_ALTER_IDENT026 - Class & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_ALTER_IDENT - Messages for Alternative Identifiers

• Message number: 026

• Message text: Class & already exists

What causes this issue?

The specified class already exists and would be overwritten during
generation. Generation is therefore not performed.

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?

Choose another name for the class or do not generate automatically.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message COM_ALTER_IDENT026 - Class & already exists ?

  The SAP error message COM_ALTER_IDENT026 typically indicates that there is an attempt to create or alter an object (like a class, interface, or other repository object) that already exists in the system. This error can occur in various contexts, such as when trying to create a new class with a name that is already in use.
  Cause:
  
  Duplicate Object Name: The most common cause is that you are trying to create a new class or object with a name that already exists in the SAP system.
  Transport Issues: Sometimes, if you are working with transports, the object might have been transported to the system already, leading to a conflict.
  Namespace Conflicts: If you are using a custom namespace, ensure that the object name does not conflict with existing objects in the same namespace.
  
  Solution:
  
  
  Check Existing Objects: Before creating a new class or object, check the existing classes or objects in the system to ensure that the name you want to use is not already taken. You can do this by using transaction codes like SE80 (Object Navigator) or SE11 (Data Dictionary).
  
  
  Rename the Object: If you find that the name is already in use, consider renaming your new class or object to something unique.
  
  
  Delete or Modify Existing Object: If the existing object is no longer needed, you may consider deleting it or modifying it if appropriate. Be cautious with this approach, as it may affect other parts of the system.
  
  
  Check Transport Requests: If you suspect that the object was transported, check the transport requests to see if the object is included in any of them. You may need to adjust your transport strategy.
  
  
  Namespace Management: If you are working in a custom namespace, ensure that you are following the naming conventions and that there are no conflicts with other developers.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE80 (Object Navigator), SE11 (Data Dictionary), SE24 (Class Builder), and SE37 (Function Module) to manage and investigate objects.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message.
  Documentation: Review SAP documentation for best practices in naming conventions and object management to avoid such conflicts in the future.
  
  By following these steps, you should be able to resolve the COM_ALTER_IDENT026 error and successfully create or alter your desired object in SAP.