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This article describes update 5002231 for Microsoft SharePoint Enterprise Server 2016 that was released on July 12, 2022.

Improvements and fixes

This update fixes an issue in which you might receive the "Type was not resolvable" error message when you use a sandbox solution or web part. This issue occurs because the SharePoint sandbox service further restricts the types and assemblies that it allows to be run by default starting in the May 2022 security update. Starting in the July 2022 security update for SharePoint Enterprise Server 2016, you could register third-party types or assemblies that the SharePoint sandbox service will allow to be run. For more information, and to learn how to resolve this error, see "Type was not resolvable" error when you use sandbox solution or web part (KB5015556).

How to download and install the update

Download Center

This update is available only for manual download and installation from the Microsoft Download Center.

Virus-scan claim

Microsoft scanned this file for viruses by using the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to it.

Update information


To apply this update, you must have Microsoft SharePoint Enterprise Server 2016 installed.

Restart information

You don't have to restart the computer after you install this update.

File information

For the list of files that are included in the update 5002231, download the file information.


Learn about the standard terminology that is used to describe Microsoft software updates.

The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office.

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