Make Copilot Chat the baseline for Microsoft 365 users. Fix oversharing before assigning licenses that answer from work data. Pilot paid licenses by role with champions, then reassign them based on measured use.
When you need this
- Leadership wants an AI plan, and Copilot buttons are already appearing in Outlook, Teams, and the Office apps.
- You are deciding whether to buy Copilot licenses for a department, a pilot group, or everyone, or whether E7 makes sense at renewal.
- Some teams already use ChatGPT or Claude, and you need a position on which assistant is the default.
Evaluation criteria
Setup: the no-cost baseline
Do all users have Copilot Chat pinned and signed in with their work account?
Look forEnable Copilot Chat for Entra users on eligible plans. Require work-account sign-in for enterprise data protection. Allow copilot.cloud.microsoft through proxies and tenant restrictions.
Governance: oversharing first
Have you found the SharePoint and OneDrive content shared more widely than it should be?
Look forReview SharePoint Advanced Management's data access governance, permission state, and sharing-link reports. Apply restricted content discovery to high-risk sites and assign owners to fix them. Reddit admins audited organization-wide links before enabling Copilot. One wrote that Copilot finds what you forgot existed.
Rollout: a targeted pilot
Which roles get paid licenses first, and what tasks will they use them for?
Look forSelect roles with heavy meeting and email loads or frequent document work. Name tasks such as meeting recaps and email summaries. Recruit champions in each team. Black & Veatch trains volunteers in six-week groups of 500 to 850 and reports 98% adoption. The University of Washington lets requesting teams fund their licenses.
Training: confidence drives results
Does each pilot group get hands-on training tied to its own work?
Look forGive each pilot group short practice sessions on its own tasks. In the UK cross-government experiment, time savings tracked confidence with AI. DBT found self-led training raised satisfaction more than formal sessions. DWP staff requested guidance specific to their roles.
Review practice: check before it goes out
Do teams know which outputs need checking?
Look forRequire people to check output before it reaches customers or leadership, including figures, summaries, and drafts. DBT users reported hallucinations throughout its pilot and checked output inconsistently.
Cost control: measure, then reassign
Do you know who uses their license after 90 days?
Look forReview Copilot Analytics by team. Compare a pre-pilot baseline survey with an impact survey afterward, then reassign lightly used licenses. In one 1,500-seat rollout, few used even a tenth of their quota. Another workplace required people to use licenses or lose them. A large company ended its subscription for low use.
Questions to ask vendors
- Which SharePoint sites would Copilot show to people who should not see them today?
- Which roles spend the most time in Teams meetings and email threads?
- Is our Copilot Business price the list price or the first-year promotion, and what renews in year two?
- Who owns adoption after launch: IT, a business sponsor, or a champions network?
Red flags
- Licensing everyone before anyone has looked at SharePoint sharing.
- A launch email with no named tasks, champions, or follow-up training.
- Leaving SharePoint agents or other new Copilot features at their default settings without review; one admin found them switched on for users before IT approved them.
- No usage review date, so unused licenses renew automatically.
Products in this piece
Sources
- Official documentation
- 8
- Public source
- 11
- Microsoft Learn: Overview of Microsoft Copilot Chat
- Microsoft Learn: License options for Microsoft Copilot
- Microsoft Learn: SharePoint Advanced Management overview
- Microsoft Learn: What is Microsoft Copilot?
- Microsoft Learn: Copilot controls overview
- Microsoft: Microsoft Copilot for business, plans and pricing
- Microsoft Customer Stories: Black & Veatch reaches 98% Microsoft Copilot adoption through AI change management (Sep 8, 2026)
- Microsoft Customer Stories: Capita empowers its employees to innovate using Copilot Agents (Jun 24, 2025)
- GOV.UK: Microsoft 365 Copilot Experiment, Cross-Government Findings Report (Jun 2, 2025)
- GOV.UK: Microsoft 365 Copilot pilot, DBT evaluation report (Aug 28, 2025)
- GOV.UK: An Evaluation of DWP's Microsoft Copilot 365 Trial (Jan 29, 2026)
- University of Washington UW-IT: Microsoft 365 Copilot executive recommendations and risks (Nov 15, 2024)
- Reddit r/sysadmin: Pre-enterprise rollout of Copilot, mitigating oversharing links (Jun 19, 2025)
- Reddit r/sysadmin comment on auditing sharing links before enabling Copilot (Jun 22, 2025)
- Reddit r/sysadmin comment on rolling Copilot out to salespeople first (Jan 17, 2025)
- Hacker News comment from an M365 admin on SharePoint agents switched on by default (Oct 5, 2025)
- Hacker News comment on 1,500 employees enrolled in business Copilot plans (Feb 6, 2026)
- Hacker News comment on a workplace reclaiming Copilot licenses from light users (Dec 4, 2025)
- Hacker News comment on a large company ending Copilot 365 for low usage (Oct 23, 2024)