How To Fix SWF_RUN_SERVICES018 - '&1' must have CL_SWF_RUN_ATTACHMENT_ABSTRACT as superclass

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RUN_SERVICES - Workflow: Services

• Message number: 018

• Message text: '&1' must have CL_SWF_RUN_ATTACHMENT_ABSTRACT as superclass

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_RUN_SERVICES018 - '&1' must have CL_SWF_RUN_ATTACHMENT_ABSTRACT as superclass ?

  The SAP error message SWF_RUN_SERVICES018 indicates that a class you are trying to use in the context of SAP Workflow does not have the required superclass CL_SWF_RUN_ATTACHMENT_ABSTRACT. This error typically arises when there is an attempt to instantiate or use a class that is expected to inherit from a specific superclass but does not.
  Cause:
  
  Incorrect Class Definition: The class you are trying to use does not extend CL_SWF_RUN_ATTACHMENT_ABSTRACT. This could be due to a custom implementation that was not properly defined.
  Missing Implementation: If you are using a custom class for handling attachments in workflows, it may not have been implemented correctly to inherit from the required superclass.
  Configuration Issues: There may be configuration issues in the workflow that reference the incorrect class.
  
  Solution:
  
  
  Check Class Definition: Verify the class definition of the class you are trying to use. Ensure that it is defined to extend CL_SWF_RUN_ATTACHMENT_ABSTRACT. You can do this by checking the class in the ABAP Workbench (SE80 or SE24).
  CLASS your_class_name DEFINITION INHERITING FROM CL_SWF_RUN_ATTACHMENT_ABSTRACT.
  
  
  Modify Class: If the class does not inherit from the required superclass, you will need to modify the class definition to include it. This may involve adding the necessary methods and properties that are expected from the superclass.
  
  
  Check Workflow Configuration: Review the workflow configuration to ensure that it is correctly referencing the intended class. If you have made changes to the class or its hierarchy, ensure that the workflow is updated accordingly.
  
  
  Testing: After making the necessary changes, test the workflow to ensure that the error is resolved and that the functionality works as expected.
  
  
  Related Information:
  
  Documentation: Refer to the SAP documentation for CL_SWF_RUN_ATTACHMENT_ABSTRACT to understand its purpose and the methods it provides. This can help you implement the required functionality in your custom class.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context on the use of CL_SWF_RUN_ATTACHMENT_ABSTRACT.
  Community Forums: If you are still facing issues, consider reaching out to SAP community forums or support for additional assistance.
  
  By ensuring that your class correctly inherits from CL_SWF_RUN_ATTACHMENT_ABSTRACT and is properly configured in the workflow, you should be able to resolve the error message SWF_RUN_SERVICES018.