Configure the maximum number of co-authoring authors in SharePoint 2013


Applies to: SharePoint Foundation 2013, SharePoint Server 2013 Enterprise

Topic Last Modified: 2016-12-16

Summary: Learn how to limit the number of users who can co-author a Word document or PowerPoint presentation at the same time.

Audience: IT Professionals

The CoauthoringMaxAuthors property lets you specify the maximum number of users who can co-author a Word document or PowerPoint presentation at the same time in SharePoint 2013. This article describes how to configure the CoauthoringMaxAuthors property by using Windows PowerShell.

Because SharePoint 2013 runs as websites in IIS, administrators and users depend on the accessibility features that browsers provide. SharePoint 2013 supports the accessibility features of supported browsers. For more information, see the following resources:

You can limit the number of users who can co-author a document at the same time by setting the CoauthoringMaxAuthors property. This property only applies to Word 2010, Word 2013, Word Web App, PowerPoint 2010, PowerPoint 2013 and PowerPoint Web App documents. There is no upper limit to the number of users who can co-author OneNote notebooks.

To configure the maximum number of co-authoring users for Word documents and PowerPoint presentations by using Windows PowerShell (save as script and run script)
  1. Verify that you have the following memberships:

    • securityadmin fixed server role on the SQL Server instance.

    • db_owner fixed database role on all databases that are to be updated.

    • Administrators group on the server on which you are running Windows PowerShell cmdlets.

    An administrator can use the Add-SPShellAdmin cmdlet to grant permissions to use SharePoint 2013 cmdlets.

    If you do not have permissions, contact your Setup administrator or SQL Server administrator to request permissions. For additional information about Windows PowerShell permissions, see Permissions and Add-SPShellAdmin.
  2. Paste the following code into a text editor, such as Notepad:

    $siteurl = "<ServerName>"
    $mysite=new-object Microsoft.SharePoint.SPSite($siteurl)
    $mysite.WebApplication.WebService.CoauthoringMaxAuthors = <MaxAuthors>
  3. Replace:

    • <ServerName> with the name of the server.

    • <MaxAuthors> with the maximum number of authors to allow.

  4. Save the file and add the .ps1 extension, such as SuggestedNameOfFile.ps1.

    You can use a different file name, but you must save the file as an ANSI-encoded text file whose extension is .ps1.
  5. Start the SharePoint 2013 Management Shell.

    • For Windows Server 2008 R2:

      • On the Start menu, choose All Programs, choose Microsoft SharePoint 2013 Products, and then choose SharePoint 2013 Management Shell.

    • For Windows Server 2012:

      • Swipe in from the edge of the screen to show the charms and then choose Search to see all the applications that are installed on the computer.

      • Choose (right-click) SharePoint 2013 Management Shell to display the app bar.

      • In the app bar, choose Run as administrator.

    For more information about how to interact with Windows Server 2012, see Common Management Tasks and Navigation in Windows Server 2012.

  6. Change to the directory to which you saved the file.

  7. At the Windows PowerShell command prompt, type the following command: ./SuggestedFileName.ps1