What kind of commercial premises? Smartthings itself just isn’t reliable enough for most commercial operations. It’s not sold for that purpose and unlike, say, Lutron and Philips, they don’t have a commercial division, which is a good clue. 
See the official product usage guidelines:
https://www.smartthings.com/guidelines
- Data accuracy and consistency from SmartThings sensors, including those provided by SmartThings directly, resold by SmartThings, or supported by SmartThings, is not guaranteed. Therefore, you should not rely on that data for any use that impacts health, safety, security, property or financial interests. For example, because temperature readings may vary significantly from reading to reading on an individual device, between devices, or over time, those readings should not be used to control heating and cooling in environments where food spoilage, health risks, or damage to physical goods could occur. Alternately, presence data from SmartThings devices or mobile/Smartphones can vary in accuracy, and therefore should not be used to control access to secure locations without secondary authentication.
Also See the community FAQ ( The topic title is a clickable link):