How To Fix APB_FPM_CORE382 - The feeder class is not notified of every selection change

SAP Error Message - Details

• Message type: E = Error

• Message class: APB_FPM_CORE - FPM messages

• Message number: 382

• Message text: The feeder class is not notified of every selection change

What causes this issue?

In the <LS>General Settings</> panel of the configuration, the attribute
<LS>Selection Mode</> has been set to allow a selection, and <LS>Enable
Event on All Selections</> has been set to <LS>Selection shall raise an
FPM Event</>. Additionally, the grouping and/or filtering functions have
been activated.
In this scenario, if a filter is applied or a group is collapsed, the
List ATS UIBB may automatically remove the selection.
If the feeder class should be informed of this, it should set the option
RAISE_EVENT_ON_FILTER_SEL_CHG to ABAP_TRUE (feeder class method
GET_DEFINITION, parameter ES_OPTIONS).

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message APB_FPM_CORE382 - The feeder class is not notified of every selection change ?

  The SAP error message APB_FPM_CORE382 indicates that the feeder class in a Floorplan Manager (FPM) application is not being notified of every selection change in the UI. This can lead to issues where the application does not respond correctly to user interactions, particularly when selections in a list or table are expected to trigger updates or changes in the UI.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Improper Configuration: The FPM configuration may not be set up correctly to handle selection changes.
  Feeder Class Implementation: The feeder class may not be properly implemented to handle the selection change events.
  Event Handling: The event handling mechanism may not be correctly wired up to notify the feeder class of selection changes.
  Missing or Incorrect Annotations: The annotations in the FPM configuration might be missing or incorrectly defined, leading to the feeder class not receiving the necessary notifications.
  
  Solution:
  To resolve the issue, you can take the following steps:
  
  
  Check FPM Configuration:
  
  Ensure that the FPM configuration is correctly set up to handle selection changes. This includes checking the configuration of the UI elements and their bindings.
  
  
  
  Review Feeder Class Implementation:
  
  Verify that the feeder class is correctly implemented to handle selection change events. Ensure that the methods responsible for handling these events are properly defined and invoked.
  
  
  
  Event Handling:
  
  Ensure that the event handling for selection changes is correctly set up. This may involve checking the event handlers in the FPM configuration and ensuring they are linked to the appropriate methods in the feeder class.
  
  
  
  Annotations:
  
  Review the annotations in the FPM configuration. Ensure that all necessary annotations are present and correctly defined to allow the feeder class to receive notifications of selection changes.
  
  
  
  Debugging:
  
  Use debugging tools to trace the flow of events and see where the notification is failing. This can help identify if the issue lies in the UI component, the feeder class, or the event handling mechanism.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for FPM and feeder classes to ensure that you are following best practices and guidelines.
  
  
  
  SAP Notes and Support:
  
  Check for any relevant SAP Notes that may address this specific error message or provide additional guidance. If necessary, consider reaching out to SAP support for assistance.
  
  
  
  Related Information:
  
  FPM Documentation: Familiarize yourself with the SAP FPM documentation to understand how feeder classes and event handling work.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Version Compatibility: Ensure that your SAP system is up to date, as some issues may be resolved in newer versions or patches.
  
  By following these steps, you should be able to identify and resolve the cause of the APB_FPM_CORE382 error message in your SAP application.