Like JKP mentioned, check the device handler, it should be using “Z-Wave Lock”.
Since you’re using a Schlage lock, you can also check out this device handler which gives you access to the advanced features (alarms, privacy modes, tamper alerts etc): [RELEASE] Universal Enhanced Z-Wave Lock Device Handler for Schlage, Yale, Kwikset, IDLock, Popp, Danalock, August Pro, Keywe, Philia, Samsung
An alternative to Smart Lock is LUM which gives you the ability to schedule users, create custom actions and notifications at the individual user level for your locks and also get invalid user/tamper notifications: [RELEASE] Lock User Management (LUM)
If you’re still having issues getting your lock to work with Smart Guest feel free to post back and happy to help