I a have a large cluster of phones, about 100, in several places in the world. They are wall mounted, and I cannot access them physically, they all must be in silence (so are configured to reject calls, and be in silence). I have remote team viewer installed and setup to remotely access them.
All of those devices are logged in, as the same user in Android/PlayStore.
What I see, is that once in a while, the user gets logged out. I am unsure why the user gets logged out. This is first issue.
Second issue, is that when I do login, all other phones will get prompted to accept the login. This makes noise, and the phones should be in complete silence. How can I prevent the "Is this you?" popup to be displayed on all devices? (lets say I do have a few backups for me to accept it).
EDIT:
As suggested: I viewed: https://myaccount.google.com/security-checkup/1 (79 devices - ok) https://myaccount.google.com/device-activity - all devices seen In my shared GMail account - I don't see anything.
I am open for more ideas.