How To Fix SWDP_WDY_MD_ADT009 - Agggregation &1 of UI Element &2 in view &3 must has no children

SAP Error Message - Details

• Message type: E = Error

• Message class: SWDP_WDY_MD_ADT - Web Dynpro Metadata ADT

• Message number: 009

• Message text: Agggregation &1 of UI Element &2 in view &3 must has no children

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WDY_MD_ADT009 - Agggregation &1 of UI Element &2 in view &3 must has no children ?

  The SAP error message SWDP_WDY_MD_ADT009 indicates that there is an issue with the configuration of a UI element in your SAP Web Dynpro application. Specifically, it states that an aggregation (like a container or a layout) is not allowed to have child elements when it is expected to be empty.
  Cause:
  This error typically occurs when:
  
  You have defined a UI element (like a layout or container) that is supposed to aggregate other UI elements, but it has been incorrectly configured to contain child elements when it should not.
  The UI element in question is expected to be a leaf node in the UI hierarchy, meaning it should not have any child elements.
  There may be a mismatch in the expected structure of the UI components as defined in the Web Dynpro component.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the UI Element Configuration:
  
  Open the Web Dynpro component in the SAP Web Dynpro Workbench.
  Navigate to the view where the error is occurring.
  Identify the UI element mentioned in the error message (e.g., aggregation &1 of UI Element &2 in view &3).
  Ensure that the UI element is configured correctly and does not have any child elements if it is not supposed to.
  
  
  
  Review the Aggregation:
  
  If the UI element is meant to aggregate other elements, ensure that it is correctly set up to do so. For example, if it is a layout that should contain child elements, make sure you are adding the correct child elements to it.
  If it is a UI element that should not have children, remove any child elements that have been incorrectly added.
  
  
  
  Check for Inheritance Issues:
  
  If the UI element is inheriting properties from a parent component, ensure that the parent component does not impose restrictions that conflict with your current configuration.
  
  
  
  Validate the Component:
  
  Use the validation tools available in the Web Dynpro Workbench to check for any other potential issues in your component that might be causing this error.
  
  
  
  Test the Changes:
  
  After making the necessary adjustments, activate the component and test it to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  Web Dynpro Documentation: Refer to the official SAP documentation for Web Dynpro to understand the structure and configuration of UI elements.
  SAP Community: You can search for similar issues in the SAP Community forums, where other developers may have encountered and resolved similar problems.
  Debugging Tools: Utilize debugging tools within the SAP environment to trace the execution and identify where the configuration might be going wrong.
  
  By following these steps, you should be able to identify and resolve the issue causing the SWDP_WDY_MD_ADT009 error in your SAP Web Dynpro application.