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Scaling Microsoft 365 Copilot over 400,000 Users at EY with Tom Crinnegan

October 27, 2026 · 50 min

Show notes

Tom Crinnegan, M365 AI Services & Governance Leader at EY, discusses how EY is deploying and governing Microsoft 365 Copilot across 420,000 users in over 140 countries.

• Managing Microsoft's Frontier early access programme at enterprise scale and setting user expectations

• The shift to usage-based billing and why IT shouldn't hold the AI credit budget

• Governance challenges with Cowork, autopilots, and Copilot code

• Running weekly enablement sessions reaching 7-8k attendees across a 420,000-strong workforce

• Keeping humans in the loop when tooling offers to take on 20-30% of the working day

Thanks to Neat, this episode's sponsor, for their continued support of Empowering.Cloud

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