How To Fix OO243 - The prefix "CM_" is reserved for message classes

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 243

• Message text: The prefix "CM_" is reserved for message classes

Self-Explanatory Message

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• What is the cause and solution for SAP error message OO243 - The prefix "CM_" is reserved for message classes ?

  The SAP error message OO243 indicates that there is an issue with the naming convention of message classes in the SAP system. Specifically, the prefix "CM_" is reserved for standard message classes, and using it for custom message classes can lead to conflicts and errors.
  
  Cause:
  The error occurs when a developer attempts to create a message class with a prefix that is reserved by SAP. In this case, "CM_" is reserved for standard message classes, and any attempt to create a custom message class with this prefix will trigger the OO243 error.
  
  Solution:
  To resolve this error, you should follow these steps:
  
  
  Rename the Message Class: Change the prefix of your custom message class to something other than "CM". For example, you could use "Z" or "Y_" as these prefixes are typically used for custom developments in SAP.
  
  
  Check Existing Message Classes: Before creating a new message class, check the existing message classes in the