Ah Okey…my friend, I think I get it !.. I do not think you can “Discard” STHM warning message from Sharptools but @josh could confirm it, but you can disarm STHM and deactivate your siren. The issue you can handle is change the STHM to DISARM status and silence the siren, I have ADT/ST hub (upstairs) and also an AEOTEC Siren 6 in the kitchen, thats the way Im doing it:
1.- One Momentary Virtual Switch named “DISARM BUTTON”
2.- One Simulated Switch named “ALARM DISARM SWITCH”
3.- In SharpTools Dashboard an alarm panel with a tile for “DISARM BUTTON”
4.- In Smartthings STHM is set when Alarm goes Off “PANIC BUTTON” (Simulated Switch) is ON
5.- One Automation in Smartthings IF “Panic Button” On then “Siren Aeotec 6” ON and Alarm Scene ON (turn house light to red 100% and yard lights to 100%)
6.- One Automation in Smartthings IF “Disarm Button” On THEN “Alarm Disarm Switch” On AND “STHM” to DISARM Status
7.- One Automation in Smartthings IF “Disarm button” On and “Panic button” is On THEN “Siren Aeotec 6” Off
8.- In SharpTools rules there is 3 rules for this:
- Notice PushOver Disarm panel Status,
- Notice PushOver Panic ON
- Notice PushOver Panic OFF
So if you have trigger in Sharptools board a button OFF and have an automation or rule that makes your siren Off and update STHM Status to Disarm it has to work, but notice that STHM Alarm warning message is going to be on in STHM until you discarded in STHM even STHM is on disarm status already.
I hope I have been clear and this can help you …