the DIY RECIPE for
Extending MS Teams with bulk import of members
This recipe is using functionality made available by the www.hexatown.com framework for server side data processing based on PowerShell hosted on your own servers. No data processing will be done outside your tenancy. No internet connectivity is required for implementing this. Only services specific access is required.
This recipe contains a ready to use PowerApps app. The app contains a simple step by step based screen and includes everything you need to deploy and use out of the box as well as a detailed walkthrough on how the application is constructed.
As everything is made using PowerApps, you find that there is no vendor lock in (other than that of Microsofts)