How To Fix OL656 - Freezing of methods is allowed only for API methods

OL656 - Overview

• Message type: E = Error

• Message class: OL - Workflow object types: Run-time system

• Message number: 656

• Message text: Freezing of methods is allowed only for API methods

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OL656 - Freezing of methods is allowed only for API methods ?

  The SAP error message OL656, which states "Freezing of methods is allowed only for API methods," typically occurs in the context of ABAP programming when you are trying to freeze a method that is not defined as an API method. This error is related to the concept of method freezing in ABAP classes, particularly in the context of class-based programming.
  
  Cause:
  
  Method Definition: The method you are trying to freeze is not defined as an API method. In ABAP, only methods that are explicitly marked as API methods can be frozen. API methods are typically those that are intended for external use or are part of a public interface.
  Incorrect Method Type: The method might be a private or protected method, which cannot be frozen.
  Freezing Context: The freezing operation is being attempted in a context that does not support it, such as within a non-API class or method.
  
  
  Solution:
  
  Check Method Definition: Ensure that the