ED234 - The object is not allowed as part of a global class

SAP Error Message - Details

• Message type: E = Error

• Message class: ED - ABAP/4 Editor messages

• Message number: 234

• Message text: The object is not allowed as part of a global class

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ED234 - The object is not allowed as part of a global class ?

  The SAP error message ED234, which states "The object is not allowed as part of a global class," typically occurs in the context of ABAP programming when you are trying to use certain types of objects or constructs that are not permitted within a global class definition. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Invalid Object Types: The error usually arises when you attempt to declare or use objects that are not allowed in the context of a global class. This can include:
  
  Local types or objects that are defined within a method or function.
  Certain types of data declarations that are restricted to local scopes.
  
  
  
  Scope Issues: Global classes in ABAP have specific rules regarding what can be included in their definitions. For example, you cannot use local types or local classes within a global class.
  
  
  Incompatible Declarations: If you are trying to use a non-global type (like a local structure or a local class) in a global class, it will trigger this error.
  
  
  Solution:
  
  
  Check Object Declarations: Review the declarations in your global class. Ensure that all types and objects used are globally defined. If you need to use a local type, consider defining it as a global type.
  
  
  Use Global Types: If you need to use a specific structure or class, make sure it is defined in the global scope (e.g., in a global include or as a global type).
  
  
  Refactor Code: If you have local types that you need to use, consider refactoring your code to either:
  
  Move the type definitions to a global context.
  Use interfaces or other global constructs that can be referenced from the global class.
  
  
  
  Check for Local Classes: If you are trying to use a local class within a global class, you will need to either convert the local class to a global class or find an alternative approach.
  
  
  Related Information:
  
  
  ABAP Class Types: Understanding the difference between global and local classes/types in ABAP is crucial. Global classes can be accessed from anywhere in the program, while local classes are restricted to the method or function they are defined in.
  
  
  SAP Documentation: Refer to the official SAP documentation for ABAP programming, which provides guidelines on class definitions, scope rules, and best practices.
  
  
  Debugging: If you encounter this error, use the ABAP debugger to trace back to the line of code causing the issue. This can help you identify which object or type is causing the problem.
  
  
  By following these guidelines, you should be able to resolve the ED234 error and ensure that your global class definitions comply with ABAP's scope rules.