https://www.googlenestcommunity.com/t5/Smart-Home-Developer-Forum/Policy-to-determine-device-offline/m-p/145548#M11 <P>What is the policy used by Google Home App to determine whether a device is offline or not?</P> Fri, 22 Apr 2022 23:47:10 GMT GoogleFAQ 2022-04-22T23:47:10Z https://www.googlenestcommunity.com/t5/Smart-Home-Developer-Forum/Policy-to-determine-device-offline/m-p/145548#M11 <P>What is the policy used by Google Home App to determine whether a device is offline or not?</P> Fri, 22 Apr 2022 23:47:10 GMT https://www.googlenestcommunity.com/t5/Smart-Home-Developer-Forum/Policy-to-determine-device-offline/m-p/145548#M11 GoogleFAQ 2022-04-22T23:47:10Z https://www.googlenestcommunity.com/t5/Smart-Home-Developer-Forum/Policy-to-determine-device-offline/m-p/145803#M21 <P>If your device is offline on Google Home app, it usually means Google Assistant hasn't received your device's states.</P><P>Your smart home action must use the API of <FONT color="#008000">reportStateAndNotification</FONT> to update your device's data in the Home Graph, see <A title="Method: devices.reportStateAndNotification" href="https://developers.google.com/assistant/smarthome/reference/rest/v1/devices/reportStateAndNotification" target="_blank" rel="noopener">Method: devices.reportStateAndNotification</A>. You can use <A title="Home Graph Viewer" href="https://smarthome-test-suite.withgoogle.com/devices" target="_blank" rel="noopener">Home Graph Viewer</A> to check whether the device states have been correctly reported.</P><P>In addition, your fulfillment should handle <A title="QUERY" href="https://developers.google.com/assistant/smarthome/reference/intent/query" target="_blank" rel="noopener">QUERY</A> intents and return the up-to-date state of devices.</P> Wed, 20 Apr 2022 06:57:56 GMT https://www.googlenestcommunity.com/t5/Smart-Home-Developer-Forum/Policy-to-determine-device-offline/m-p/145803#M21 christinapeng 2022-04-20T06:57:56Z