SharePoint Online limits

Last updated: August 2018

This article describes SharePoint Online limits that apply to all plans. For storage and user limits for current Office 365 plans and SharePoint Online standalone plans, see the SharePoint Online service description.


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. To learn more about other restrictions for viewing large lists, see Manage large lists and libraries in Office 365. For information about characters that can't be used in file names, see Invalid characters in file and folder names.

  • 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. For example, the following is a typical URL path to a file stored in SharePoint:

  • 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 300,000 files in a single OneDrive or team site library. Although SharePoint Online can store 30 million documents per library, for optimum performance we recommend syncing no more than 300,000 files across all document libraries. Additionally, the same performance issues can occur if you have 300,000 items or more across all libraries you are syncing, even if you are not syncing all items in those libraries. If you use the previous OneDrive for Business sync client (Groove.exe), the sync limit per library is 20,000 items (including 5,000 items per team site).

  • 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.

  • Managed Metadata Term Store (database) - 200000 terms, 1000 global term sets, 1000 groups

Note: There is no limit to the number of external users you can invite to your SharePoint Online site collections. For more information, see Manage external sharing for your SharePoint Online environment.

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Office 365 connectivity limits

To learn more about Internet bandwidth, port and protocol considerations for Office 365 plans, see Office 365 Ports and Protocols.

SharePoint feature availability

To learn more about SharePoint feature availability and the SharePoint Online service in Office 365, see SharePoint Online Service Description.

SharePoint Online search limits

To learn more about the search limits for SharePoint Online, see Search limits for SharePoint Online.

OneDrive for Business restrictions and limits

To learn more about restrictions and limits when using the new OneDrive sync client (OneDrive.exe), see Restrictions and limitations when you sync files and folders.

To learn more about restrictions and limits when using the previous OneDrive for Business sync client (Groove.exe), see Restrictions and limitations when you sync SharePoint libraries to your computer through OneDrive for Business.

To determine which sync client you're using, see Which OneDrive sync client am I using?

File types

To learn about file types that can't be added to a list, see Types of files that cannot be added to a list or library.

Online URLs

To learn about SharePoint Online addresses, see SharePoint Online URLs and IP Addresses.

Site languages

To learn how to set language for your sites, see Change your language and region settings.

Planning and deploying SharePoint Online

SharePoint Online Planning Guide for Office 365 for business.

Adding or reducing storage

Change storage space for your subscription.

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