How To Fix APB_FPM_GUIBB126 - Swap UIBB exists already

SAP Error Message - Details

• Message type: E = Error

• Message class: APB_FPM_GUIBB -

• Message number: 126

• Message text: Swap UIBB exists already

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APB_FPM_GUIBB126 - Swap UIBB exists already ?

  The SAP error message APB_FPM_GUIBB126: "Swap UIBB exists already" typically occurs in the context of the Floorplan Manager (FPM) when working with UI Building Blocks (UIBBs) in an application. This error indicates that there is an attempt to swap or replace a UIBB that is already present in the application layout, which is not allowed.
  Cause:
  
  Duplicate UIBB Configuration: The error usually arises when there is a configuration issue where the same UIBB is being added multiple times to the same area of the application layout.
  Incorrect Logic in Application: The logic in the application might be trying to swap a UIBB that is already in use, leading to this conflict.
  State Management Issues: If the application is not managing the state of UIBBs correctly, it may lead to attempts to swap UIBBs that are already present.
  
  Solution:
  
  Check Configuration: Review the configuration of the FPM application to ensure that UIBBs are not being defined multiple times in the same area. Each UIBB should have a unique identifier.
  Modify Application Logic: If the application logic is attempting to swap UIBBs, ensure that it checks whether the UIBB is already present before attempting to swap it. Implement checks to prevent duplicate swaps.
  Debugging: Use debugging tools to trace the execution flow and identify where the swap operation is being triggered. This can help pinpoint the exact cause of the error.
  Clear Cache: Sometimes, clearing the cache of the application can resolve issues related to stale configurations. This can be done through transaction codes like /IWFND/CACHE_CLEANUP or similar, depending on your system setup.
  Consult Documentation: Refer to SAP documentation or notes related to FPM and UIBBs for any specific guidelines or known issues that might relate to your scenario.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  FPM Documentation: Review the official SAP documentation on Floorplan Manager and UIBBs for best practices and configuration guidelines.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.