How To Fix APB_FPM_GUIBB155 - Illegal change of usage parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: APB_FPM_GUIBB -

• Message number: 155

• Message text: Illegal change of usage parameter

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message APB_FPM_GUIBB155 - Illegal change of usage parameter ?

  The SAP error message APB_FPM_GUIBB155: Illegal change of usage parameter typically occurs in the context of the Floorplan Manager (FPM) and is related to the usage parameters of a UI component in an SAP application. This error indicates that there is an attempt to change a usage parameter that is not allowed or is being modified in an incorrect context.
  Cause:
  
  Incorrect Configuration: The error often arises when there is a misconfiguration in the FPM application or the UI component. This could be due to changes made in the configuration that are not compatible with the current state of the application.
  Usage Parameter Restrictions: Some usage parameters are defined as read-only or have specific conditions under which they can be changed. Attempting to modify these parameters inappropriately can trigger this error.
  Version Mismatch: If there are inconsistencies between the versions of the components being used (e.g., backend and frontend), it may lead to this error.
  Custom Code Issues: If there is custom code that manipulates the usage parameters, it may inadvertently lead to illegal changes.
  
  Solution:
  
  Review Configuration: Check the FPM configuration for the application. Ensure that the usage parameters are set correctly and that no illegal changes are being attempted.
  Check for Read-Only Parameters: Identify which parameters are read-only and ensure that your application logic does not attempt to modify them.
  Debugging: Use debugging tools to trace the execution flow and identify where the illegal change is being attempted. This can help pinpoint the exact location in the code or configuration that is causing the issue.
  Consult Documentation: Refer to the SAP documentation for the specific FPM component you are working with to understand the allowed usage parameters and their constraints.
  Update Components: If there is a version mismatch, consider updating the components to ensure compatibility.
  Custom Code Review: If there is custom code involved, review it to ensure that it adheres to the expected usage of parameters and does not attempt illegal modifications.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  FPM Documentation: Familiarize yourself with the Floorplan Manager documentation to better understand how usage parameters work and the best practices for configuring them.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.