How To Fix OL579 - Name '&' already assigned to a method

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 579

• Message text: Name '&' already assigned to a method

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OL579 - Name '&' already assigned to a method ?

  The SAP error message OL579, which states "Name '&' already assigned to a method," typically occurs in the context of ABAP programming when there is a naming conflict in the method definitions of a class. This error indicates that you are trying to define a method with a name that has already been used in the same class or in a superclass.
  Cause:
  
  Duplicate Method Name: You are attempting to create a method with a name that already exists in the class or in any of its superclasses.
  Inheritance Issues: If the class inherits from a superclass that already has a method with the same name, you cannot redefine it without using the REDEFINITION keyword.
  Namespace Conflicts: If you are working in a namespace that has conflicting method names, this can also lead to this error.
  
  Solution:
  
  Rename the Method: The simplest solution is to rename the method you are trying to create to something unique that does not conflict with existing method names.
  Check Superclass Methods: If your class is inheriting from a superclass, check the methods defined in the superclass to ensure that you are not unintentionally trying to redefine a method.
  Use REDEFINITION: If you intend to override a method from a superclass, use the REDEFINITION keyword in your method definition to indicate that you are intentionally overriding the existing method.
  Review Class Structure: Ensure that your class structure is well-organized and that method names are unique across the class hierarchy.
  
  Related Information:
  
  ABAP Class and Method Naming Conventions: Familiarize yourself with naming conventions in ABAP to avoid conflicts.
  SAP Documentation: Refer to the official SAP documentation for more details on class and method definitions.
  Debugging Tools: Use the ABAP Workbench (SE80) or Class Builder (SE24) to inspect existing methods and their definitions to avoid naming conflicts.
  
  By following these steps, you should be able to resolve the OL579 error and successfully define your methods in SAP ABAP.