Everything teams ask before their first scan.
Permissions, scan duration, what is stored, what it costs and how MSPs run it. If your question is not here, ask us — we usually reply within one working day.
Tenant Storage Optimisation: your questions answered
Is TSO read-only?
Yes. TSO only requests read scopes from Microsoft Graph. It never deletes, moves or modifies anything in your tenant — every finding is a recommendation for your admin to act on.
How long does a first scan take?
For a typical mid-size tenant, 20–90 minutes. It runs asynchronously — you can close the tab and come back.
Do I need a card to try it?
No. The Free tier covers your first tenant scan without a card. Sign in with Microsoft 365 to start.
Which Microsoft 365 workloads are covered?
SharePoint Online (including subsites), OneDrive for Business, Microsoft Teams (files channel) and Exchange Online mailboxes. All four scan from a single admin consent.
What data does TSO store?
Site and drive metadata, storage numbers and activity dates, plus derived recommendations. Never file contents. Data lives in Azure UK South by default; MSPs on the self-hosted plan can pick their own region.
How is TSO different from the native SharePoint admin storage report?
The admin report shows top-level totals per site. TSO surfaces individual duplicate files, version bloat, largest files with owner and last-access, and turns each into a ranked reclaim action with an Excel/PDF you can hand to a client.
Do I need to install anything on-prem?
No agents, no proxies, no on-prem installers. Consent to the read-only Graph app and TSO scans through Microsoft Graph.
What permissions does the app request?
Sites.Read.All, Files.Read.All, Reports.Read.All, Directory.Read.All, User.Read.All and Group.Read.All — all read-only. An admin approves them once during onboarding and can revoke access at any time from the Entra portal.
How much does it cost?
Free covers one tenant and one scan of up to 25 SharePoint sites. Pro is $1,190/month for a full single-tenant scan, Enterprise $1,490/month for up to five tenants, and MSP pricing is tailored to your portfolio. See the pricing page.
How is it billed?
Direct customers are billed monthly, quarterly or yearly by Stripe. Buying through the Microsoft or Azure Marketplace puts it on your existing Microsoft agreement, and Microsoft handles the billing.
Can I upgrade or downgrade later?
Yes, from Settings → Billing in the app. Stripe-billed customers use the customer portal; Marketplace-billed customers change plan in Microsoft’s console and the change syncs automatically.
Can we buy through Microsoft?
Yes. TSO is listed on the Microsoft Marketplace and Azure Marketplace, so it can be billed through your existing Microsoft agreement.
Can I white-label the reports?
Yes — on the Enterprise and MSP tiers, both PDF and Excel exports carry your branding. See MSP & partners.
Can I run TSO in my own Azure subscription?
Yes, on the MSP tier. LogiSam engineers deploy TSO into your subscription so client data never leaves your control — the detail is on the partners page.
Still deciding?
Run the free scan on your own tenant — one scan, 25 SharePoint sites, no card — or send us the question that is holding you up.
More on Tenant Storage Optimisation
Every page of the TSO sub-site, and the way back to the rest of LogiSam.