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Message type: E = Error
Message class: WD - Workflow definition
Message number: 065
Message text: Source and target nodes must be different
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WD065
- Source and target nodes must be different ?Certainly! Here's a detailed explanation of the SAP error message WD065: "Source and target nodes must be different" including its cause, solution, and related information.
SAP Error Message: WD065 - "Source and target nodes must be different"
Cause:
This error occurs in Web Dynpro ABAP applications when you try to create a navigation link or perform a navigation action where the source node and the target node are the same. In other words, the framework expects that the navigation should happen between two different nodes in the component controller or context, but the source and target nodes specified are identical.
This typically happens in scenarios such as:
In Web Dynpro, nodes represent context elements (like data containers). Navigation between nodes is used to transfer data or trigger UI changes. Navigating from a node to itself is logically incorrect because it implies no change or movement in the context structure, which the framework does not allow.
To resolve the WD065 error, you need to ensure that the source node and target node are different. Here are the steps to fix it:
Check Context Mapping:
Review Navigation Links:
Programmatic Navigation:
wd_context->get_child_node()
or wd_this->fire_navigation()
), verify that the source and target nodes are different.Context Node Design:
Suppose you have a context node Employee
and you try to create a navigation link from Employee
to Employee
itself. This will trigger WD065 because the framework expects navigation to a different node, such as EmployeeDetails
or EmployeeAddress
.
Aspect | Description |
---|---|
Error | WD065: Source and target nodes must be different |
Cause | Navigation or context mapping uses the same node as source and target |
Solution | Ensure source and target nodes are different in context mapping or navigation links |
Where to check | Context mapping, navigation links, ABAP code in Web Dynpro components |
If you provide the specific context or code snippet where this error occurs, I can help you with a more tailored solution.
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