currently I have big troubles with creating a microsoft app, that customers can use in their office365. The app should be installable by every office365 account! Not just from me. Currently I created my app via the application portal: https://apps.dev.microsoft.com. (Is that right?) Behind this App is a React Application.
The next steps should be that I connect this app to my Amazon AWS Cognito. Office365 users who had installed this application from the Office Store, should be able to sign in/up to this application. Single Sign On