How To Fix WD264 - Contents of the clipboard cannot be moved

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 264

• Message text: Contents of the clipboard cannot be moved

Self-Explanatory Message

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• What is the cause and solution for SAP error message WD264 - Contents of the clipboard cannot be moved ?

  SAP Error Message:
  
  WD264: Contents of the clipboard cannot be moved
  
  Cause
  This error typically occurs in SAP Web Dynpro applications when there is an attempt to move or manipulate the contents of the clipboard (context node or attribute) in a way that is not allowed or possible. The clipboard in Web Dynpro is a hierarchical data structure representing the UI context, and certain operations like moving nodes or attributes may fail if:
  
  The source or target node/attribute does not exist or is not accessible.
  The operation violates the data integrity or structure rules of the context.
  The clipboard content is locked or currently in use.
  There is an incorrect usage of the API methods for moving clipboard content.
  The context node or attribute is read-only or does not support the move operation.
  
  
  Typical Scenarios
  
  Trying to move a context node or attribute that is not a direct child of the current node.
  Attempting to move clipboard content between incompatible nodes.
  Using incorrect methods or parameters in the Web Dynpro API for clipboard operations.
  Programming errors in the Web Dynpro component controller or view controller manipulating the context.
  
  
  Solution
  
  
  Check the Context Structure:
  
  Verify that the source and target nodes/attributes exist and are correctly referenced.
  Ensure that the move operation is logically valid (e.g., moving a node to a compatible parent node).
  
  
  
  Use Correct API Methods:
  
  Use the appropriate Web Dynpro API methods such as moveElement(), moveNode(), or moveAttribute() correctly.
  Confirm that the parameters passed to these methods are valid and not null.
  
  
  
  Check Read-Only Status:
  
  Ensure that the clipboard content you want to move is not read-only or locked.
  If necessary, unlock or make the content editable before moving.
  
  
  
  Debug the Application:
  
  Use the Web Dynpro debugger to trace the exact point where the error occurs.
  Check the stack trace and context data to identify inconsistencies.
  
  
  
  Review SAP Notes and Documentation:
  
  Search for SAP Notes related to WD264 for any known bugs or patches.
  Consult SAP Web Dynpro documentation for correct clipboard handling.
  
  
  
  Example Fix:
  
  Instead of moving clipboard content, consider copying and then deleting the original if move is not supported.
  Validate all context node references before performing move operations.
  
  
  
  
  Related Information
  
  SAP Web Dynpro Context: The clipboard is the runtime representation of the context in Web Dynpro applications. Understanding its structure and manipulation is key to resolving WD264.
  API Documentation: Refer to SAP Web Dynpro API documentation for methods related to context node and attribute manipulation.
  SAP Notes: Check SAP Support Portal for notes mentioning WD264 or clipboard manipulation issues.
  Common Web Dynpro Errors: WD264 is one of several errors related to context handling; others include WD265 (clipboard content cannot be copied), WD266 (clipboard content cannot be deleted), etc.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Invalid or unsupported move operation on clipboard content in Web Dynpro context.
  
  
  Solution
  Verify context nodes, use correct API methods, ensure content is editable, debug code.
  
  
  Related
  SAP Web Dynpro context handling, API methods for clipboard manipulation, SAP Notes.
  
  
  
  
  If you provide the exact code snippet or scenario where the error occurs, I can help with a more specific solution.