How To Fix SWDP_WB_TOOL234 - &1 is mapped. Original property "Singleton" cannot be deactivated

SAP Error Message - Details

• Message type: E = Error

• Message class: SWDP_WB_TOOL - Web Dynpro: Messages for Workbench Tools

• Message number: 234

• Message text: &1 is mapped. Original property "Singleton" cannot be deactivated

What causes this issue?

You want to switch off the "Singleton" property of the node &V1&. &V1&
contains a mapping to an original node with the "Singleton" property.

System Response

The system rejects the switch off action.

How to fix this error?

The "Singleton" adopted through mapping is binding for &V1& and cannot
be switched off. However, if the original node has the "Singleton"
property, "Singleton" can be set for &V1& as a limit.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WB_TOOL234 - &1 is mapped. Original property "Singleton" cannot be deactivated ?

  The SAP error message SWDP_WB_TOOL234 indicates that you are trying to deactivate the "Singleton" property of a component or object in the SAP Web Dynpro environment, but it cannot be deactivated because it is currently mapped to another component or object.
  Cause:
  The "Singleton" property in Web Dynpro indicates that only one instance of the component can exist at a time. This is often used for components that maintain a shared state or data. The error occurs when you attempt to change this property to allow multiple instances, but the component is already referenced or mapped in a way that requires it to remain a singleton.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Mappings: Review the mappings of the component where you are trying to deactivate the Singleton property. Look for any references to this component in other components or views.
  
  
  Remove References: If the component is being used in other components or views, you will need to remove those references before you can change the Singleton property. This may involve:
  
  Editing the component configuration.
  Removing or modifying the usage of the component in other views or components.
  
  
  
  Re-evaluate Design: If the component is designed to be a singleton for a reason (e.g., it maintains shared state), consider whether it is necessary to change this property. If the design allows for multiple instances, ensure that all references are appropriately handled.
  
  
  Re-attempt Change: Once you have removed all mappings and references, try to deactivate the Singleton property again.
  
  
  Check for Dependencies: Ensure that there are no other dependencies or constraints that might prevent the change. This could include other components, data bindings, or application logic.
  
  
  Related Information:
  
  Web Dynpro Documentation: Review the official SAP documentation on Web Dynpro components and properties to understand the implications of changing the Singleton property.
  SAP Community: Engage with the SAP Community forums for insights from other developers who may have encountered similar issues.
  Debugging Tools: Use debugging tools within the SAP Web Dynpro environment to trace where the component is being used and to identify any hidden dependencies.
  
  By following these steps, you should be able to resolve the error and successfully change the Singleton property if needed.