Reverting a completed step in a pocess

how to revert a completed step in a running process and in a completed process and bring back to previous state ?

Create a new process instance. Move the instance to the expected state… .
Provide more info.

Regards
Martin

What does revert mean? If it is a business revert then you’ll need to model. e.g. if the step you did was a credit card reservation, revert means canceling the reservation. This is something that you need to model on your own.

Cheers,
Filip