How To Fix 37420 - There is already a Control Composite for Custom Control &1

37420 - Overview

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 420

• Message text: There is already a Control Composite for Custom Control &1

Self-Explanatory Message

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37420 - Details

• The SAP error message "37420: There is already a Control Composite for Custom Control &1" typically occurs in the context of SAP UI5 or SAP Fiori applications when there is an attempt to create or instantiate a control composite that has already been created. This can happen due to various reasons, such as duplicate initialization of a control or incorrect handling of the lifecycle of UI components.
  
  Cause:
  
  Duplicate Initialization: The error often arises when the same control is being initialized multiple times in the application, leading to conflicts.
  Improper Lifecycle Management: If the control is not properly destroyed or cleaned up before being re-initialized, it can lead to this error.
  Code Logic Issues: There may be logical errors in the code that lead to the creation of the same control multiple times.
  
  
  Solution:
  
  Check Initialization Logic: Review the code to ensure that the control is only being initialized once. Use flags or checks to prevent