How To Fix OO198 - Cannot edit the constructor of an exception class

OO198 - Overview

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 198

• Message text: Cannot edit the constructor of an exception class

What causes this issue?

The constructor of an exception class is generated when saving the
class definition. Changing or implementing the interface is not
permitted.

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?

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 OO198 - Cannot edit the constructor of an exception class ?

  The SAP error message OO198, which states "Cannot edit the constructor of an exception class," typically occurs in the context of ABAP programming when you attempt to modify the constructor of an exception class. In ABAP, exception classes are used to handle errors and exceptions in a structured way, and they have specific rules regarding their constructors.
  
  Cause:
  The error arises because:
  
  Exception Class Restrictions: In ABAP, exception classes are defined with certain restrictions. The constructors of exception classes are predefined and cannot be modified. This is to ensure that the exception handling mechanism remains consistent and reliable.
  Incorrect Modification Attempt: You might be trying to add parameters or change the signature of the constructor in a way that is not allowed.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Exception Class Definition: Review the definition of the exception class you are trying to modify. Ensure that you are not attempting to