Dynamic Error Message in Workflow Failure Event

Hi,

We are using a workflow for validation triggered via an Event Action. In the Failure Event, the error message is static.

We want to show a dynamic error message similar to:
Error_SYS.Appl_General('Error :P1 and :P2')
by passing values (P1, P2) at runtime.

We tried using workflow variables in the Failure Event message, but it still behaves as static.

Questions:

• Is it possible to pass dynamic values to the Failure Event error message?
• Can we achieve something similar to Error_SYS.Appl_General in a workflow?

Event Action:

Workflow:

Thanks!