How To Fix WXP428 - Place the cursor on a node

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 428

• Message text: Place the cursor on a node

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message WXP428 - Place the cursor on a node ?

  SAP Error Message: WXP428 - Place the cursor on a node
  
  Cause:
  The error message WXP428 typically occurs in SAP Web Dynpro applications when an operation or action expects the user to have selected or placed the cursor on a specific node in a tree or hierarchical structure, but no node is currently selected. Essentially, the system requires a context node to proceed, and since none is selected, it raises this message.
  
  When does it occur?
  
  When trying to perform an action (like edit, delete, or display details) on a tree node or hierarchical list without selecting any node.
  In Web Dynpro applications where node context is mandatory for the operation.
  Often seen in custom or standard Web Dynpro components involving tree controls or node-based navigation.
  
  
  Solution:
  
  
  Select a Node:
  
  Before performing the action, ensure that you click on or place the cursor on a node in the tree or list control.
  The node must be highlighted or active to provide the required context.
  
  
  
  Check UI Logic:
  
  If you are a developer, verify that the UI logic enforces node selection before triggering actions.
  Implement checks in the code to prevent actions if no node is selected, and provide user-friendly messages.
  
  
  
  Enhance User Guidance:
  
  Provide clear instructions or disable buttons/actions until a node is selected.
  Use UI elements like tooltips or status bar messages to guide users.
  
  
  
  Debugging (for developers):
  
  Check the Web Dynpro component’s event handlers to ensure the node context is correctly passed.
  Use breakpoints to verify if the node context is null or empty when the action is triggered.
  
  
  
  
  Related Information:
  
  Message Class: WXP (Web Dynpro Framework)
  Message Number: 428
  This message is part of the Web Dynpro framework’s standard messages related to node handling.
  Similar messages may appear if the application expects a context node but none is provided.
  Refer to SAP Web Dynpro documentation on Tree Controls and Context Nodes for detailed understanding.
  If this occurs in a custom application, review the component’s context mapping and event handling.
  
  
  Summary:
  WXP428 - Place the cursor on a node means the system requires you to select a node in a tree or hierarchical structure before proceeding. Simply select the node and retry the operation. If you are a developer, ensure your application logic handles this scenario gracefully.
  
  If you need help with a specific transaction or custom Web Dynpro application, please provide more details!