Download the user signInActivity from the beta endpoint using Microsoft Graph Powershell module.

You can use the Microsoft Graph Powershell module to download last sign in date / time for users from the Beta endpoint ( the signInActivity is currently not available in v1.0 ) and save the list to a .csv file. You must have the Microsoft Graph powershell module installed. This document will help you get started. My powershell script:

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