What does Android used.selfprovisioning in my google web and app activity mean?

In my Google web and app activity, it says Android used self-provisioning what does that mean? Also in my Android Google activity it says interacted with unknown device, how do I figure out what that device was?

1. See https://www.cisco.com/c/en/us/suppor...e-cucm-00.html
2. You will have to use your memory. It could be another device, phone etc

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