RBoy
(www.rboyapps.com - Making SmartThings Easy!)
3
You could try to use the built in Automations tool (+) in the new ST app to create custom rule to notify you when it’s been unlocked.
Alternatively you could use try this app and it’ll notify when you lock has been left unlocked with a repeat notification option every X minutes and announce it over alexa/bose/sonos, set notification schedules (upto 3), custom notifications etc: