Embrace automatically generates an Embrace ID determined based on the device.
You also can pass a User ID to identify users through a set of methods related to the user identifier. Embrace.getInstance().setUserIdentifier("internal_user_id_1234")
Remember that this data will be uploaded to Embrace, so think about the privacy of your users and only include data you are willing to share. We recommend including an anonymized user ID only your agents can search for. The above call annotates the session with a user identifier that you can use later to search for this user. For more methods on setting user values, see the API docs. (https://embrace.io/docs/android/features/identify-users/)