The SeatPrune Blog

Practical guides on Microsoft 365 licensing, cost optimisation, and the waste hiding in your tenant.

·8 min read

Microsoft 365 Usage Reports: What 'Active' Actually Means (and When It Lies)

Every license decision rests on usage data. What the M365 reports really measure, the five ways they mislead, and how to read them before cutting seats.

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·6 min read

Your License Audit Stops at Microsoft 365 — Adobe and Autodesk Don't

IT teams that diligently audit M365 seats often leave Adobe Creative Cloud and Autodesk licenses completely unchecked. Here is how to find the waste in both.

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·7 min read

Copilot for Microsoft 365: Measuring Whether the $30/User Is Earning Its Keep

Copilot costs $360/user/year. Microsoft's own reports show who actually uses it — here's how to measure adoption and right-size the seats.

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·6 min read

Microsoft Teams Phone Licenses Nobody Uses: The Add-on Waste Audit

Teams Phone seats with no number attached, calling plans nobody dials, duplicate E5 add-ons — how to find and reclaim voice license waste.

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·8 min read

SeatPrune vs CoreView vs Trelica (Now 1Password): Which M365 License Tool Fits Your Team?

Updated comparison: CoreView pivoted to security, Trelica became 1Password SaaS Manager, Zluri left the category. Who still does M365 license optimization?

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·5 min read

Trelica Is Now 1Password SaaS Manager — What It Means for SMB License Management

Trelica's free tier is gone and the product moved enterprise. What former Trelica users and SMB evaluators should look for now.

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·6 min read

License Drift: Why Your Microsoft 365 Bill Creeps Up Every Month

Nobody approved a bigger M365 bill, yet it grows every quarter. The four mechanics of license drift and how to stop them.

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·6 min read

How MSPs Turn M365 License Optimization Into a Recurring Revenue Stream

License auditing is the rare MSP service that pays for itself in the first meeting. Three ways to package and price it.

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·8 min read

The Microsoft 365 License Audit Checklist: 10 Checks Before Your Renewal

A practical 10-point audit to run 60–90 days before your M365 renewal — the checks, the order, and what each typically saves.

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·5 min read

Disabled Accounts With Active Licenses: The Silent Budget Leak

Blocked sign-in doesn't mean stopped billing. Why disabled M365 accounts keep their licenses, and how to reclaim them safely.

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·5 min read

Shared Mailboxes Don't Need Licenses — Here's What That Mistake Costs

Shared mailboxes under 50 GB are free, yet tenants routinely pay full user licenses for them. How it happens and how to fix it.

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·6 min read

Microsoft 365 E5 vs E3: Is the $21/User Upgrade Actually Worth It?

E5 costs $57/user/mo vs E3 at $36. A practical framework for deciding who actually needs E5 — and how to find users who don't.

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·7 min read

How to Find Unused Microsoft 365 Licenses: The Complete Guide

Three ways to find unused M365 licenses — admin center, PowerShell, and automated tools — plus what "unused" actually means.

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