How To Fix FDT_WD_EXPRESSION021 - &1: Result data object is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_WD_EXPRESSION -

• Message number: 021

• Message text: &1: Result data object is missing

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_WD_EXPRESSION021 - &1: Result data object is missing ?

  The SAP error message FDT_WD_EXPRESSION021 indicates that there is a problem with a data object in the context of a Web Dynpro application. Specifically, the message states that the "Result data object is missing," which typically means that the application is trying to access or manipulate a data object that has not been defined or is not available in the current context.
  Causes:
  
  Missing Data Object: The data object that the expression is trying to reference has not been defined in the context of the Web Dynpro component.
  Incorrect Binding: The binding of the data object in the Web Dynpro view or controller might be incorrect or not properly set up.
  Context Node Issues: The context node that is supposed to hold the data object may not be instantiated or may not contain the expected data.
  Expression Errors: There may be an error in the expression itself, such as a typo or incorrect syntax that prevents the data object from being recognized.
  
  Solutions:
  
  Check Data Object Definition: Ensure that the data object is properly defined in the context of the Web Dynpro component. Verify that it exists in the context node and is correctly typed.
  Review Bindings: Check the bindings in the Web Dynpro view and controller. Make sure that the data object is correctly bound to the UI elements and that the binding paths are accurate.
  Inspect Context Nodes: Look at the context nodes in the Web Dynpro component to ensure they are correctly instantiated and populated with data. If necessary, add logic to populate the context node before it is accessed.
  Validate Expressions: Review the expressions used in the application for any syntax errors or incorrect references. Make sure that the expressions are correctly formed and reference existing data objects.
  Debugging: Use the debugging tools available in the SAP environment to trace the execution of the application and identify where the data object is expected but not found.
  
  Related Information:
  
  Web Dynpro Documentation: Refer to the official SAP documentation for Web Dynpro to understand how context nodes and data binding work.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels to see if other users have encountered similar issues and how they resolved them.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.