Many thanks for your reply,
I have this issue in a more complex process, so I simplified the process for test purposes,
Basically what I want to do is each time I create a human task, a rule check if a max number has been reached, if this is the case the rule do some actions.
my first test was to chek if the some rule can be activated many times for the some process instance, and how to do it.
have a good weekend,
Cheers,