How To Fix WD503 - New task selected, enter expression for task

SAP Error Message - Details

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 503

• Message text: New task selected, enter expression for task

What causes this issue?

You have overwritten task &v1& with &v2&.
In addition, you have set the indicator <LS>task determined by
expression</> in order to determine the task dynamically at runtime.
If the task you have entered in the <ZH>control</> window is different
in the interface from the task which is determined dynamically at
runtime, there may be problems with the workflow execution.

System Response

The system informs you that the task to be executed has been determined
dynamically at runtime.

How to fix this error?

Check whether the new task &v2& has the same parameters as task &v1&,
otherwise the binding will not function properly at runtime.

Error message extract from SAP system. Copyright SAP SE.