11-11-2020 04:22 PM
11-11-2020 10:39 PMSolution
The 25TB is the technical limit for SharePoint Online site collections.
The 1TB you are referring to is what space you are given by default in a SharePoint Online subscription.
If you wish to add additional space to the 1TB you need to purchase more storage which is available on the on the Site Collections page inside SharePoint admin or on the subscriptions page inside Office 365 Admin.
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