SAP ABAP Message Class OO_SOURCE_BASED Message Number 013 (The category of a class can only be changed if there are no sub classes)
Hierarchy
SAP_BASIS (Software Component) SAP Basis Component
   BC-DWB-TOO-CLA (Application Component) Class Builder
     SEO_SOURCE_BASED (Package) Source-based Class Editor
Attribute
Message class OO_SOURCE_BASED  
Short Description WB - Class Builder - Messages for the source-b. Class Editor    
Message Number 013  
Documentation status       Space: object requires documentation
Authorization check Error Message      
Changed On 20130531   
Message Text
The category of a class can only be changed if there are no sub classes
Help Document

Diagnosis

You tried to change the class category (standard class, exception class) by changing the super class. The category of a class can only be changed if there are no sub classes.

System Response

The system does not save changes made in the class to avoid inconsistencies in the sub classes.

Procedure

Set a super class that has the same category than your own class.

Procedure for System Administration

History
Last changed on/by 20130531  SAP 
SAP Release Created in