How To Fix WD440 - Requested operation is not possible on selected node '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 440

• Message text: Requested operation is not possible on selected node '&'

What causes this issue?

The function cannot be executed on the node selected. This error can
occur if an operator is selected and you choose a function.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check whether the node is selected on which you want to execute the
function.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.