How To Fix WXCM006 - Specify either the context structure or the dummy value

SAP Error Message - Details

• Message type: E = Error

• Message class: WXCM - Messages for Package CM_MAP

• Message number: 006

• Message text: Specify either the context structure or the dummy value

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• What is the cause and solution for SAP error message WXCM006 - Specify either the context structure or the dummy value ?

  SAP Error Message:
  
  WXCM006 - Specify either the context structure or the dummy value
  
  Cause:
  This error occurs in Web Dynpro ABAP when a context node or attribute is expected to be bound or initialized, but neither a context structure nor a dummy value has been specified. Essentially, the framework requires either a valid context structure to be assigned or a dummy value to be provided for the UI element or context attribute, but both are missing.
  This typically happens in the following scenarios:
  
  When defining context attributes or nodes in the Web Dynpro component and the binding is incomplete.
  When a UI element (like an input field or output field) is bound to a context attribute that has no initial value or structure.
  When a context node is expected to have a structure but none is assigned or the dummy value is not set.
  
  
  Solution:
  To resolve the WXCM006 error, you need to ensure that either:
  
  
  Context Structure is Specified:
  
  Assign a proper context structure to the context node or attribute.
  In the Web Dynpro component’s context tab, check the node or attribute and assign a data element or structure that defines the data type.
  Make sure the context node is properly initialized in the component controller or view controller before it is used.
  
  
  
  Dummy Value is Provided:
  
  If no real data structure is available or needed, provide a dummy value for the context attribute.
  This can be done by setting a default value in the context attribute properties or by initializing the attribute programmatically in the WDDOINIT method or relevant event handler.
  
  
  
  
  Additional Information:
  
  Context in Web Dynpro: The context is the data model of the Web Dynpro application. It holds the data that UI elements bind to.
  Why is this important? Without a context structure or dummy value, the UI element has no data to display or manipulate, leading to runtime errors.
  Where to check:  
  
  In the Web Dynpro component editor, under the Context tab.
  In the Properties of the context node or attribute.
  In the WDDOINIT method or other initialization methods where context nodes/attributes are filled.
  
  
  
  
  Example:
  If you have a context attribute CustomerName of type STRING but you have not assigned a data element or initialized it, you might get this error. To fix it:
  
  Assign a data element like CHAR with length 50 to CustomerName.
  Or initialize it in code:
  
  wd_context->get_attribute( 'CustomerName' )->set_static_value( ' ' ).
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  Neither context structure nor dummy value specified for a context node/attribute.
  
  
  Solution
  Assign a proper context structure or provide a dummy/default value for the context attribute.
  
  
  Where to fix
  Web Dynpro component context tab, attribute properties, or initialization code (WDDOINIT).
  
  
  
  
  If you continue to face issues, check the Web Dynpro trace or debugger to see exactly which context node or attribute is causing the problem.