The SharePoint Online Administrator can use the SharePoint Online Administration Center to create and manage settings for site collections. After a site collection is set up, you can assign permissions to site collection administrators and site owners. In addition, you can allocate storage across site collections, determine whether to invite external users to sites, and set up a public site for your organization.

Before you begin using the SharePoint Online Administration Center, we recommend that you read Step 1: Plan to manage SharePoint Online by using the Administration Center. This topic provides guidance to first-time users and lists questions to consider before you start creating and configuring your site collections.

To find step-by-step procedures for using site collection features in the SharePoint Online Administration Center, see Site Collections.

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