I am trying to run the application for my study on using microsoft graph rest api in outlook web add-in. I found this link.They have asked to Enable OAuth 2.0 implicit flow capability for the Azure AD application in the setup instructions. I would appreciate if you can help me with this. Additional links related to using microsoft graph API would be much appreciated. Thank you in advance
In terms of just enabling implicit flow on an Azure AD / Microsoft Graph application, you can do it in the App Registration portal.
After you login, look inside Platforms > Web, and check the Allow Implicit Flow button. If you don't see the Web platform, you can click Add platform and configure the app.