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Written by Brad

Tags: Admin Impact

August 12, 2022

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Site Limits for SharePoint Lists, Libraries, and Subsites

OneDrive for Business, SharePoint Online, SharePoint Development Services

From Microsoft Corporation
Technical Bulletin MC405984 · Published Jul 26, 2022

Message Summary

SharePoint recommends a maximum of 2,000 lists and libraries per site, and 2,000 subsites per site. These have been long standing limits for SharePoint but have not been formally enforced.

There have been cases where some sites exceeded these limits, resulting in poor site performance and low-quality viewing experience. One of the most impacted areas is the API performance that degrades significantly when users access data on the sites that exceed their recommended limits. The API calls may time out or get throttled, blocking the users from opening the site or resulting in unexpected failures. In some extreme cases, the issue can impact functionalities beyond these sites.

To ensure site performance and help customers have the best possible experience, Microsoft will implement a safeguard to prevent customers from exceeding these limits.

When will this happen:

The enforcement of the limits will start in early November and will be completely enforced by late December.

How this will affect your organization:

Once these limits are enforced, sites that exceed the limit of 2,000 lists and libraries will no longer be able to have new libraries or lists added to the site. Similarly, any site that exceeds the limit of 2,000 subsites will no longer be able to have new subsites added to the site.

When a site reaches these limits, users will see the following message on SharePoint web:


View image in new tab

On the API request to create a new list or document library, SharePoint will return the error code, ERROR_SHARING_BUFFER_EXCEEDED on the API request.

Libraries, lists, and subsites that have been created before the enforcement rollout and exceed the corresponding limit, will continue to function and their access will not be blocked. The change will only impact the creation of new lists, libraries or subsites outside the approved limits starting in November. These new additions will get blocked at the time of creation once the site reaches the corresponding limit.

What you need to do to prepare:

Share these limits with people who manage SharePoint sites in your organization. If the sites in your tenant are below the limits, this change will not impact you.

It is uncommon for the organic growth of site to reach these limits. However, there is a possibility that custom solutions can generate a high volume of lists and libraries. In that situation, our recommendation is to work with their solution providers to prepare an alternative solution in order to stay compliant with these limits.

Additional Information:

Additional information

TECHNICAL BULLETIN END

QuixTec provides this and other technical bulletins unaltered from Microsoft. As an authorized Microsoft Partner, we ensure that all our solutions we deliver to you include the latest Microsoft updates.

ABOUT US: QuixTec, LLC is a U.S. certified Veteran Owned, modern DevOps organization with experience in a plethora of IT Software Languages.  As a Microsoft Partner, we specialize in Discounted Microsoft Software Licensing, Microsoft SharePoint, Microsoft365 and HTML5 technologies for small to enterprise-sized organizations. Our dedication to IT excellence is evidenced through our PECB ISO Certification training center. The only PECB ISO authorized center in Washington State. QuixTec, implements and provides training for upcoming open-source digital marketing services that are taking the industry by storm. This solution, used by over 100,000 businesses, provides enterprise level marketing capabilities at startup rates. The founder, Richard, has 30 years of experience working with several notable companies that include World Vision, Expedia, Microsoft, Levi Strauss, NASA, Boeing Aerospace, Los Alamos National Laboratory, and the U.S. Air Force, to name a few.  QuixTec is in the Seattle area. Phone today for a free consultation and project estimate.

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