Hello, I am trying to develop an application that needs to identify the user device along to users ID, for example UserEmail()+device unique ID. The app is for remote attendance where staff working in the field should register there attendance according to their time/current
coordinates. If it was only for the UserEmail(), any other staff may log in with another staff Emails “that did not attend that day” to register their “fake” attendance. We are trying to find a way to identify the device ID along to the useremail(). Acquiring IMEI or device serial number
would be quite helpful. Is there any expression or a way to do so?