Comprehensive Guide to Sites.Selected Permissions in SharePoint Online

Sites.Selected is an application permission for Microsoft Graph and/or SPO and allows Admins to grant Read or Write permission to the selected/targeted sites. Manage sites using Graph or CSOM/REST. PnP PowerShell can be used to Grant, Get, Revoke and Set AAD app permissions in Azure. Perfect for running an application in the background.

Supporting materials

Permission Reference Application Permissions

For your app to access data in Microsoft Graph, the user or administrator must grant it the correct permissions via a consent process. This topic lists the permissions associated with each major set of Microsoft Graph APIs. It also provides guidance about how to use the permissions.

https://docs.microsoft.com/en-us/graph/permissions-reference#application-permissions-56

Sites.Selected Application permission for Graph and SharePoint APIs

For your app to access data in Microsoft Graph, the user or administrator must grant it the correct permissions via a consent process. This topic lists the permissions associated with each major set of Microsoft Graph APIs. It also provides guidance about how to use the permissions.

https://www.youtube.com/watch?v=mz4ye-AsUnY&t=0s

Controlling app access on a specific SharePoint site collections is now available in Microsoft Graph

One very frequent request we’ve heard over the last couple years is to allow for more granular permissions when it comes to accessing SharePoint with an application. Historically we’ve allowed you to select several levels of access but all at the tenant scope.

https://devblogs.microsoft.com/microsoft365dev/controlling-app-access-on-specific-sharepoint-site-collections/