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This is a user error as request is in itself wrong, because it tries to add a new list item to a list.
CPS provides a separate endpoint to Add a list element
So, such a scenario should be handled by throwing an exception from the API instead of returning a successful response.
Add support to Add list elements using Replace a node API
Throw appropriate error message when a non-existing list item is sent as part of the payload
Proposed/Accepted Solutions
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