In order to sync alarms made in Bacnet, the points need to exist in the DB Builder app after dragging them in from the connector. Most of the time, it would just work without a tuning policy.
If alarms don't automatically come in, the user will have to make sure a connTuning policy is on the connector on which the points are coming from and that's it.
Here is how to create a tuning policy and adding it to a connector.