Starting of custom task &1 with selection screen not supported

What causes this issue?

The task &V1& is a custom task. It is not a pre-defined SAP standard
task.
It is currently not possible to perform such tasks by sending the
selection screen in the data or consolidation monitor.

System Response

Error message

How to fix this error?

You can start the program which has been assigned to custom task &V1&,
with transaction SE38.

Error message extract from SAP system. Copyright SAP SE.