Even when i deactivate a user from the portal the user is not deactivatedAnswered

1) I would like to know if its possible to limit the number of days the license will be active or how to set a expiration date and where to set ?

yep: https://wyday.com/limelm/help/license-features/
 

2) When i deactivate the user in the portal and then i ask the user to launch the product still launches. I expect that to fail 

If you read what it says in the LimeLM interface when below the activations that says the deactivations will not happen immediately. That's by design. It will happen after X days. There is no way to immediately revoke at key (by design – trust me, you don't want this).