How To Fix OO023 - Method implementation does not exist. Save the class first.

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 023

• Message text: Method implementation does not exist. Save the class first.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message OO023 - Method implementation does not exist. Save the class first. ?

  The SAP error message "OO023 Method implementation does not exist. Save the class first." typically occurs in the context of ABAP Object-Oriented programming when you are trying to call a method that has been declared in a class but has not yet been implemented or saved.
  
  Cause:
  
  Method Declaration Without Implementation: You have declared a method in a class but have not provided its implementation. In ABAP, a method must be both declared and implemented for it to be callable.
  Unsaved Changes: You may have made changes to the class or method but have not saved them. The system does not recognize unsaved changes, leading to this error.
  Class Activation: The class may not be activated after changes were made. In ABAP, classes need to be activated for the changes to take effect.
  
  
  Solution:
  
  
  Implement the Method: Ensure that you have provided the implementation for the method you are trying to call. You can do this