This session covers understanding of Storage, Permissions and Sharing in SharePoint Online.

Timestamps

00:00 Intro
00:20 Agenda
01:20 Tenant Storage
04:05 Site Collection Storage Management
11:33 OneDrive Storage
17:02 Common Storage Issue
23:40 Permissions in SPO
32:20 Permission Levels
40:10 SharePoint Groups
44:52 Permission Inheritance
48:43 Check Permissions
50:57 Limited Access
53:28 Custom Script
56:23 User Info List
59:55 Permission for modern group sites
01:01:26 Permission Issues
01:08:36 Sharing
01:19:05 Troubleshooting Sharing Issues

Below are reference articles that provide detailed information on these areas.

SharePoint Online Storage
SharePoint limits - Service Descriptions: https://docs.microsoft.com/en-us/office365/servicedescriptions/sharepoint-online-service-description/sharepoint-online-limits?redirectSourcePath=%252fen-US%252fArticle%252fSharePoint-Online-software-boundaries-and-limits-8f34ff47-b749-408b-abc0-b605e1f6d498
OneDrive service description - Service Descriptions: https://docs.microsoft.com/en-us/office365/servicedescriptions/onedrive-for-business-service-description?redirectedfrom=MSDN
Change a specific user's OneDrive storage space - OneDrive: https://docs.microsoft.com/en-us/onedrive/change-user-storage?redirectSourcePath=%252farticle%252fSet-your-OneDrive-for-Business-storage-quota-7448173d-a38c-48cf-acbb-09ac1b6237d4
Manage site storage limits - SharePoint in Microsoft 365: https://docs.microsoft.com/en-us/sharepoint/manage-site-collection-storage-limits

Permissions in SharePoint Online
SharePoint authentication:
https://docs.microsoft.com/en-us/sharepoint/authentication
Permissions:
https://docs.microsoft.com/en-us/sharepoint/sites/user-permissions-and-permission-levels
Understanding permission levels in SharePoint - SharePoint in Microsoft 365: https://docs.microsoft.com/en-us/sharepoint/understanding-permission-levels
Custom Script:
https://docs.microsoft.com/en-us/sharepoint/security-considerations-of-allowing-custom-script
https://docs.microsoft.com/en-us/sharepoint/allow-or-prevent-custom-script
User Info List:
https://gallery.technet.microsoft.com/office/User-Information-List-in-8b420e8c
Sharing in SharePoint Online
https://docs.microsoft.com/en-us/Office365/Enterprise/microsoft-365-guest-settings
https://docs.microsoft.com/en-us/powershell/module/sharepoint-online/set-sposite?view=sharepoint-ps
https://support.microsoft.com/en-us/office/share-sharepoint-files-or-folders-1fe37332-0f9a-4719-970e-d2578da4941c
https://docs.microsoft.com/en-us/sharepoint/what-s-new-in-sharing-in-targeted-release