Action: Gather a list of provisioned OneDrive for Business sites In the Office 365 admin portal, navigate to Admin > SharePoint ...

Action: Gather a list of provisioned OneDrive for Business sites In the Office 365 admin portal, navigate to Admin > SharePoint > Site Collections. This will display all currently provisioned site collections. Also, check the Recycle Bin as this will also show Site Collections that may have been created and then later deleted. Site collections in the recycle bin will prevent the provisioning of new site collections.