SharePoint Online limits

SharePoint Online limits that apply to all plans. For storage and user limits for current Office 365 plans and SharePoint Online standalone plans

Service limits

Items and files - A list can have up to 30 million items and a library can have up to 30 million files and folders. Views can have up to 12 lookup columns.

Subsites - Up to 2,000 per site collection

File path length - The total length of the URL, including the file name, can't exceed 400 characters.

File size - Less than 15 GB per file. Files attached to list items can be up to 250 MB in size.

Sync - For optimum performance, we recommend storing no more than 100,000 files in a single OneDrive or team site library. If you use the previous OneDrive for Business sync client (Groove.exe), the sync limit per library is 5,000 items.

• Versions - 50,000 major versions and 511 minor versions
• SharePoint groups - A user can belong to 5,000 groups, and each group can have up to 5,000 users. You can have up to 10,000 groups per site collection.
• SharePoint hosted applications – 20,000 instances per tenant.
• Users - 2 million per site collection.