How To Fix /UI2/FDM_UIAD999 - Writing into UIAD is not supported.

/UI2/FDM_UIAD999 - Overview

• Message type: E = Error

• Message class: /UI2/FDM_UIAD -

• Message number: 999

• Message text: Writing into UIAD is not supported.

Self-Explanatory Message

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/UI2/FDM_UIAD999 - Details

• The SAP error message /UI2/FDM_UIAD999 Writing into UIAD is not supported typically occurs in the context of SAP Fiori applications and the underlying UI5 framework. This error indicates that there is an attempt to write or modify data in a way that is not supported by the system, particularly in the context of the UI Adaptation (UIAD) feature.
  
  Cause:
  
  
  UI Adaptation: The error usually arises when there is an attempt to modify the UI adaptation data (UIAD) in a way that is not allowed. This could be due to:
  
  Trying to save changes to a UI adaptation that is locked or not editable.
  Attempting to write to a UIAD object that is not designed to be modified.
  Issues with the configuration or permissions related to the UI adaptation.
  
  
  
  Authorization Issues: The user may not have the necessary authorizations to perform the action they are trying to execute.
  
  
  Technical Limitations: There may be technical limitations or bugs in