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Reduce SaaS sprawl by building an owned inventory from finance, identity, vendor, and employee records; checking activity with each application owner; and reclaiming seats only after confirming business need, contract terms, and data-handling requirements. Low activity is a reason to investigate, not proof that a license is safe to remove. A disciplined review can expose waste, but the available official guidance does not establish a universal savings percentage.
Find every SaaS application your company pays for
No single system is likely to show every tool, user, and cost. The FinOps Foundation recommends combining discovery methods such as stakeholder interviews, financial records, and SSO or CASB platforms. Reconcile those records with vendor consoles, invoices, card transactions, and application inventory data; cost and usage details may live in separate sources. See the FinOps Foundation’s SaaS capability guidance.
For a Microsoft environment, Defender for Cloud Apps describes a centralized inventory view covering SaaS and connected OAuth applications, including permissions and consent details. That can help surface connected services, but it is one input to a wider inventory, not a substitute for finance and owner review. See Microsoft’s application governance overview.
For each application, record its business owner, purpose, department, provisioned users and purchased seats, contract and renewal dates, data sensitivity, and the source of each fact. Keep this as an operating record that changes when tools, owners, or contracts change.
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Measure usage before labeling licenses unused
Start with the strongest activity evidence the application provides: vendor-reported usage, active versus provisioned accounts, feature activity when available, and assigned versus purchased seats. SaaS usage data can be less granular than cloud billing data and may not include associated cost details, so reconcile usage and spend rather than assuming either record tells the whole story.
Two useful measures from the FinOps Foundation are:
- License utilization: assigned licenses divided by purchased licenses.
- Active-to-provisioned user ratio: active users divided by provisioned users.
These formulas help describe your own portfolio; they are not industry benchmarks or a prediction of savings. Define what counts as “active” for each application, since login activity alone may not capture meaningful use.
Review inactivity with the application owner
An inactive account is a review signal, not automatic evidence that the seat or application is unnecessary. Ask the owner whether low activity reflects seasonal work, infrequent but critical use, business continuity, audit or retention needs, an integration, a service account, or a periodic campaign. Microsoft advises tailoring inactivity windows to the organization and accounting for legitimate absences such as vacation.
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Microsoft Learn gives 90–180 days as an example range many organizations may use when defining inactive user accounts; it is not a universal SaaS removal rule. Separately, Microsoft’s Entra recommendation can flag certain applications with no use for over 90 days. That recommendation is marked preview, and Microsoft says to determine whether the app is still needed before removing it. See Microsoft’s recommendation for reviewing unused applications and its inactive-account guidance.
Group findings by action rather than treating every low-activity record alike: unused seats, inactive accounts, overlapping applications, tiers that may be downgraded, and subscriptions nearing renewal. This separates an access cleanup from a product or contract decision.
Remove access and reclaim seats without losing needed data
- Confirm the user and business need. Ask the manager or application owner to validate the finding, including dependencies and retention obligations.
- Preserve or transfer what must remain. Transfer ownership, export data, or arrange retention according to the vendor’s supported process and your organization’s legal, security, and records requirements.
- Remove access through the supported workflow. Coordinate with the owner and follow your joiner, mover, and leaver controls. Unassigning a license, disabling an account, deleting an account, and reducing a subscription quantity are distinct actions.
- Check the commercial result. Verify whether the released seat can be reassigned and whether reducing the purchased quantity is allowed and will change charges.
Microsoft 365 administrators with the required role can assign or unassign licenses in the Microsoft 365 admin center, and Microsoft documents PowerShell approaches as well. If an unused Microsoft 365 license will not be reassigned, Microsoft advises considering removal from the subscription so the organization does not keep paying for more licenses than needed. Follow Microsoft’s license assignment and unassignment guidance.
For a former employee, Microsoft says Microsoft 365 data is held for 30 days after license removal; after that period, most content is permanently deleted, with SharePoint documents excepted. Confirm current product-specific retention and mailbox behavior, account status, preservation duties, and transfer steps before acting. Do not apply this Microsoft 365 timing to another SaaS product. See Microsoft’s former-employee guidance.
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Releasing an assigned seat does not necessarily lower the bill. Before changing a subscription, confirm whether the agreement permits a mid-term reduction, when a true-down can take effect, any minimum seat count or tier threshold, volume discounts, bundled products, usage-based charges, renewal dates, and exit terms. FinOps guidance recommends reviewing pricing and renewal factors and reclaiming licenses only where contractually allowed. Begin the review early enough to inform renewal decisions rather than waiting until the term ends.
Keep SaaS sprawl from returning
Make ownership and renewal control part of everyday operations, not a periodic spreadsheet cleanup:
- Assign both a business owner and a cost owner to each application.
- Route new-tool approvals through procurement and add approved tools to the inventory.
- Connect renewal reminders and contract dates to the same record.
- Include SaaS access in joiner, mover, and leaver workflows.
- Schedule recurring usage and duplicate-tool reviews, with owners responsible for resolving findings.
The FinOps Foundation recommends clear ownership, procurement and renewal workflows, centralized discovery, cost allocation, and identifying unused, underused, or duplicate subscriptions. Its guidance emphasizes that license removal should follow user-management review and remain within contract terms.
When a SaaS management platform is worth evaluating
A SaaS management platform can provide a more centralized view when records across finance, identity, vendor systems, and business teams are difficult to reconcile. Compare candidates on discovery integrations, recognizable service coverage and update frequency, seat and feature-level usage depth, billing visibility, support for different licensing models, workflow fit, security, scalability, and extensibility. These are evaluation criteria, not an endorsement of a particular vendor.
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