How To Fix /PF1/MSG_BPE028 - Class should be subclass of class /PF1/CL_PO_E_EV_CHECK up to 2 levels

/PF1/MSG_BPE028 - Overview

• Message type: E = Error

• Message class: /PF1/MSG_BPE -

• Message number: 028

• Message text: Class should be subclass of class /PF1/CL_PO_E_EV_CHECK up to 2 levels

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_BPE028 - Class should be subclass of class /PF1/CL_PO_E_EV_CHECK up to 2 levels ?

  The SAP error message /PF1/MSG_BPE028 indicates that there is an issue with class inheritance in the context of Business Process Engine (BPE) or a related framework. Specifically, it suggests that a class you are trying to use is not a subclass of the required class /PF1/CL_PO_E_EV_CHECK up to 2 levels deep.
  
  Cause:
  
  
  Class Hierarchy Violation: The class you are trying to use does not extend the required base class /PF1/CL_PO_E_EV_CHECK. This could be due to:
  
  The class being incorrectly defined.
  A missing or incorrect implementation of the required methods.
  The class being created in a way that does not adhere to the expected inheritance structure.
  
  
  
  
  Configuration Issues: There may be configuration settings in the BPE or related components that are expecting a specific class structure that is not being met.
  
  
  Development Errors: If custom classes were developed, they may not have been implemented correctly, leading to this error.
  
  
  
  Solution:
  
  
  Check Class Definition: Verify that the class you are using