How To Fix APB_FPM_CORE219 - You can only define one wire for each UIBB instance key

SAP Error Message - Details

• Message type: E = Error

• Message class: APB_FPM_CORE - FPM messages

• Message number: 219

• Message text: You can only define one wire for each UIBB instance key

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APB_FPM_CORE219 - You can only define one wire for each UIBB instance key ?

  The SAP error message APB_FPM_CORE219 indicates that there is an issue with the configuration of a User Interface Building Block (UIBB) in the Floorplan Manager (FPM) framework. Specifically, it states that you can only define one wire for each UIBB instance key. This error typically arises when there is an attempt to create multiple wires (connections) for the same UIBB instance, which is not allowed.
  Cause:
  
  Multiple Wires Defined: The most common cause of this error is that the same UIBB instance is being wired to multiple sources or targets, which violates the one-to-one relationship that FPM expects.
  Configuration Errors: There may be a misconfiguration in the FPM configuration where the wiring is not set up correctly.
  Duplicate Instance Keys: If there are duplicate instance keys defined for UIBBs, it can lead to confusion in the wiring.
  
  Solution:
  
  
  Check Wiring Configuration: Review the wiring configuration in the FPM application. Ensure that each UIBB instance has only one wire defined. You can do this by:
  
  Navigating to the FPM configuration in the SAP GUI.
  Checking the wiring settings for each UIBB instance.
  Removing any duplicate wires or correcting the configuration.
  
  
  
  Use Unique Instance Keys: Ensure that each UIBB instance has a unique instance key. If you have multiple instances of the same UIBB, make sure they are configured with different keys.
  
  
  Debugging: If the issue persists, consider using debugging tools to trace the wiring logic and identify where the multiple wires are being defined.
  
  
  Consult Documentation: Refer to the official SAP documentation for FPM and UIBB wiring to ensure that you are following best practices.
  
  
  Testing: After making changes, test the application to ensure that the error is resolved and that the UIBBs are functioning as expected.
  
  
  Related Information:
  
  FPM Documentation: SAP provides extensive documentation on the Floorplan Manager and UIBB configurations. Reviewing this documentation can provide insights into proper wiring practices.
  SAP Community: Engaging with the SAP Community forums can be helpful. Other users may have encountered similar issues and can offer solutions or workarounds.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches that could resolve underlying issues.
  
  By following these steps, you should be able to resolve the APB_FPM_CORE219 error and ensure that your FPM application is configured correctly.