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Work with sites in a Multi-Geo environment

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SharePoint sites span the default and satellite geo locations of a Multi-Geo tenant. When your custom solution needs to work with SharePoint sites, and when you deploy applications, it's important to be aware of the geo locations in your Multi-Geo tenant.

Deploy applications to Multi-Geo tenants

When you're deploying applications, such as SharePoint Add-ins or SharePoint client-side web parts based on the SharePoint Framework, you need to take into account that applications are deployed at the geo location level.

When you deploy an application to the default geo location, that application is not available in the satellite geo locations. For more information, see Manage apps and add-ins in a Multi-Geo tenant.

We recommend that you deploy and update your enterprise applications in all locations. This ensures that the application is available to all users.

Enumerate site collections

To enumerate all tenant site collections, use the CSOM GetSitePropertiesFromSharePointByFilters method on a Tenant object instance. Because each geo location has a tenant admin center, you must enumerate site collections per geo location and concatenate the results to get a single tenant-wide list of site collections.

To perform a tenant-wide site enumeration:

  • Find all geo locations and their associated tenant admin site URLs.
  • Create a loop that iterates over the geo locations and creates a Tenant object with the geo location's admin site URL.
    • Use the GetSitePropertiesFromSharePointByFilters method call on the Tenant object to get the site collections for that geo location.
    • Append the site collections to a list.
  • Return the list of site collections.

For more information, see the MultiGeo.SiteEnumeration sample.

For more information about permissions and how to configure your application, see Set up a Multi-Geo sample application.

Perform tenant-level operations

The Tenant object is also used to configure tenant-level settings, such as CDN settings, and tenant-level site settings, such as the site geo location restriction. To perform tenant-level operations:

  • Find all geo locations and their associated tenant admin site URLs.
  • To update tenant-level settings, iterate over the geo locations and make the change per geo location.
  • To update tenant-level site settings:
    • Use the GeoLocation property of the Site object to get the site's geo location.
    • Use the GetSitePropertiesByUrl tenant method to get the site, make changes, and call Update on the retrieved SiteProperties object.

For more information about how to get a site by using the GetSitePropertiesByUrl method and then restrict the site from being moved by setting the RestrictedToRegion property, see the MultiGeo.RestrictSiteToGeoLocation sample.

Identify sites by storing the site ID

In a Multi-Geo tenant, sites can be moved between geo locations, which implies that the URL of that site will change, so we don't recommend storing the site URL as a unique key to identify a site. It's better to store the site ID because that doesn't change, regardless of the geo location in which the site is hosted.

See also