How To Fix MPE_OAN002 - More than one end event exists in this operation activity network

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 002

• Message text: More than one end event exists in this operation activity network

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN002 - More than one end event exists in this operation activity network ?

  The SAP error message MPE_OAN002 indicates that there is an issue with the operation activity network in your project or production order. Specifically, it means that there is more than one end event defined for the operation activity network, which is not allowed. In a properly structured operation activity network, there should only be one end event to signify the completion of the operation.
  Cause:
  
  Multiple End Events: The primary cause of this error is the presence of multiple end events in the operation activity network. This can happen due to incorrect configuration or data entry when setting up the network.
  Network Configuration Issues: If the network was manually created or modified, it might have inadvertently included more than one end event.
  Data Integrity Issues: There may be inconsistencies in the data that lead to multiple end events being recognized by the system.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Review the Operation Activity Network:
  
  Go to the transaction code related to the operation activity network (e.g., CNO1 for creating a network or CNO2 for changing a network).
  Check the structure of the network to identify the end events.
  
  
  
  Identify and Remove Extra End Events:
  
  Look for any additional end events that are not necessary.
  Ensure that only one end event is defined for the operation activity network. If you find multiple, determine which one is the correct end event and remove the others.
  
  
  
  Validate the Network:
  
  After making changes, validate the network to ensure that it is correctly configured.
  Use the appropriate transaction to check for errors or inconsistencies in the network.
  
  
  
  Test the Changes:
  
  Once you have made the necessary adjustments, try to execute the operation or process again to see if the error persists.
  
  
  
  Consult Documentation or Support:
  
  If you are unsure about how to proceed or if the issue persists, consult SAP documentation or reach out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CNO1, CNO2, and CNO3 for creating, changing, and displaying networks.
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may address the issue.
  Training and Documentation: Consider reviewing SAP training materials or documentation on operation activity networks to better understand their structure and requirements.
  
  By following these steps, you should be able to resolve the MPE_OAN002 error and ensure that your operation activity network is correctly configured.