How To Fix APB_FPM_CORE108 - FPM event loop is not allowed to be resumed while running

SAP Error Message - Details

• Message type: E = Error

• Message class: APB_FPM_CORE - FPM messages

• Message number: 108

• Message text: FPM event loop is not allowed to be resumed while running

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APB_FPM_CORE108 - FPM event loop is not allowed to be resumed while running ?

  The SAP error message APB_FPM_CORE108 indicates that there is an issue with the FPM (Floorplan Manager) event loop in your application. This error typically occurs when there is an attempt to resume an event loop that is already running, which is not allowed in the FPM framework.
  Cause:
  
  Concurrent Execution: The error often arises when an event handler or a user action tries to trigger a new event while the previous event is still being processed.
  Improper Event Handling: If the application logic does not properly manage the state of the event loop, it can lead to attempts to resume the loop when it is already active.
  Long-running Processes: If a process takes too long to complete, it may lead to the event loop being in a state where it cannot accept new events.
  
  Solution:
  
  Check Event Handlers: Review the event handlers in your application to ensure that they are not trying to trigger new events while the current event is still being processed.
  Optimize Processing Time: If you have long-running processes, consider optimizing them or breaking them into smaller, asynchronous tasks to prevent blocking the event loop.
  Debugging: Use debugging tools to trace the execution flow and identify where the event loop is being incorrectly managed.
  Error Handling: Implement proper error handling to catch and manage exceptions that may arise during event processing.
  Review Custom Code: If you have custom code in your FPM application, ensure that it adheres to the FPM guidelines and does not interfere with the event loop management.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates their knowledge base with solutions for common problems.
  FPM Documentation: Review the official SAP documentation on FPM to understand the event loop mechanism and best practices for managing events.
  Community Forums: Engage with the SAP community forums or support channels to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to diagnose and resolve the APB_FPM_CORE108 error in your SAP application.