First things first.
Go into the camera and set up smart plan with IVS, then go to the IVS screen and draw IVS rules (tripwire or intrusion box) and then select the AI you want it to trigger on (human or vehicle).
Then in BI, there are a few places you need to set this up in BI (assuming you already set up the IVS rules in the camera GUI):
In Camera configure setting check the box "Get ONVIF triggers".
Make sure IP address, username, and password are correct.
Hit Find/Inspect on the camera setting to pull the coding for the triggers.
Go into Trigger Tab and select the "ONVIF/camera events" or "Cameras digital input" box depending on your version of BI.
On the Alerts tab uncheck the Motions Zones tab (those are alerting you to any BI motion in those areas in Zones A thru H)
On the alerts tab set up how to be notified.
If it still doesn't work after doing this, then post screenshots of the Windows pop-up when the Find/Inspect is selected.
