This is a very sensitive lock. We’ve often seen wind trigger the alarm. You can however adjust the sensitivity of the alarm using this device handler (which I think you’re using) and this [smart app] ([RELEASE] Schlage Connect Lock Alarm Mode and Sensitivity Change and Monitor (BE469)) to schedule changes based on triggers, e.g. during the day reduce the sensitivity and during the night increase the sensitivity or change the tamper mode (or do it manually on the lock itself as a one time adjustment).
I would recommend reducing the sensitivity one level at a time until you find the sweet spot. Keep in mind that the Alert mode doesn’t trigger an alarm over Z-Wave but it does beep to let you know someone’s at the door (like someone is knocking), Tamper level has a higher overall threshold (and can trigger tamper alerts over z-wave) but the threshold can be adjusted to make it more or less sensitive.