Let users connect classic team sites to new Microsoft 365 groups

As a global or SharePoint admin in Microsoft 365, you can allow or prevent site collection administrators from connecting classic team sites to new Microsoft 365 groups. You can also use Microsoft PowerShell or the API to connect sites to new Microsoft 365 groups.

Allow or prevent site collection administrators from connecting classic team sites to new Microsoft 365 groups

  1. Go to the Settings page of the new SharePoint admin center, and sign in with an account that has admin permissions for your organization.

Note

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If you have Office 365 Germany, sign in to the Microsoft 365 admin center, then browse to the SharePoint admin center and open the Settings page.
If you have Office 365 operated by 21Vianet (China), sign in to the Microsoft 365 admin center, then browse to the SharePoint admin center and open the Settings page.

  1. Select classic settings page.

  2. Next to "Allow site owners to create Microsoft 365 groups and attach them to existing sites," select Do not allow site owners to create new Microsoft 365 groups for their existing sites. or Allow site owners to create new Microsoft 365 groups for their existing sites.

When this setting is on, and the site collection administrator for a classic team site (with the template STS#0) is allowed to create groups, they will see the "Connect to a new Microsoft 365 Group" option in settings. For more info, see:

Note

If your organization has set up OneDrive and SharePoint Multi-Geo, site collection administrators can connect a site to a new Microsoft 365 group only if the site's location matches the user's preferred data location.