Let users login with Microsoft using this plugin.
Login with Microsoft Plugin | Bubble
This is very similar to Outlook plugin but when your users reach the consent screen they don’t have to allow access for you to send emails on their behalf and view all of their contacts, they just offer permission to authenticate with your app, that’s all 
Hope some people find this handy
Here’s the video for getting the api keys setup
https://vimeo.com/457946196/c54f8a6fc7
By the way if you’re looking for developer to build your project: reach out to me here and let’s discuss your project
https://253dev.bubbleapps.io/apply-for-project or message me on WhatsApp at +12532194010
Thanks,
Evan