Microsoft completes rollout of Copilot Chat fair-use limits for all unlicensed commercial users
From 9 November 2026, Microsoft's Copilot Chat throttling caps extend to all commercial tenants. Here's what changes for users, admins, and partners.
Microsoft has quietly completed a phased rollout of fair-use throttling limits on Copilot Chat for commercial users who do not hold a paid Microsoft 365 Copilot licence. Organisations with 2,000 or fewer Microsoft 365 seats were brought into scope from 2 November 2026. Larger organisations followed from 9 November 2026, completing the full rollout across web, desktop, and mobile apps.
The change was communicated to administrators via two Message Centre posts published on 3 November 2026: MC1536158 covering smaller organisations and MC1536163 covering larger ones.
What is actually changing
Copilot Chat remains included in Microsoft 365 commercial subscriptions at no extra cost. That has not changed. What has changed is that Microsoft is now applying fair-use caps to additional features and capabilities within Copilot Chat, beyond the image generation limits that were already in place.
Microsoft describes fair use as providing “access to a feature with limits” that “can vary throughout the day.” In plain terms, if an unlicensed user sends enough prompts, they will hit a cap and see an in-product message telling them the feature is unavailable. They are told when to try again. Any response already in progress when the limit is reached will not be interrupted.
The specific features now capped, and the thresholds that trigger a cap, have not been published. Microsoft sets and manages the limits, and admins have no visibility into them and no way to adjust them.
What this means for end users
If you use Copilot Chat through your work Microsoft 365 account and do not have a Microsoft 365 Copilot licence, you may start seeing messages in the app telling you a feature is temporarily unavailable. The message will indicate when you can try again.
In most organisations, that in-product notice will also include a button to request a Microsoft 365 Copilot licence from your IT admin. If your organisation allows self-service purchasing, you may also be able to buy a licence directly.
For most users, the practical impact will be occasional friction rather than a complete block. Heavy users of Copilot Chat are more likely to notice it.
Personal Microsoft 365 subscriptions (Single, Family, and Premium) are not affected by these limits. Those plans operate on a separate AI credits system.
What this means for IT admins
There is no configuration required, and no action needed to enable or disable these limits. They apply automatically.
The harder problem is visibility. The Copilot Chat usage report in the Microsoft 365 admin centre shows prompts submitted, active days, and last activity per user. It does not show how many times a user hit a limit or when. The only practical signal available is a noticeable drop in prompt volume among your heaviest Copilot Chat users after 9 November 2026.
Licence requests from users who click the in-product button land in the Microsoft 365 admin centre under Billing > Licenses, on the Requests tab. It is worth making sure your helpdesk team knows this, so they can handle the uptick in queries and licence requests without confusion.
The main admin task here is communication. If your users do not know why Copilot Chat is occasionally unavailable, they will raise support tickets. A short internal note explaining the change before it affects them is the most useful thing you can do.
Microsoft recommends reviewing Limits for features and capabilities in Microsoft Copilot Chat on Microsoft Support, and Manage self-service licence requests in the Microsoft 365 admin centre for guidance on handling licence requests.
What this means for Microsoft partners
Microsoft has been explicit in its Partner Center framing: “Copilot Chat fair use limits for users without a Microsoft 365 Copilot license create an upsell conversation with your customers.”
The AI Business Solutions & Security Partner Experience (ASPX) portal includes a Users Experiencing Usage Limits view, which shows which customers have users reaching Copilot Chat limits. That signal may surface in partner reseller systems before an organisation’s own admin console shows anything, making it a prompt for a licensing conversation rather than a reactive support call.
The relevant licence options Microsoft points to are Microsoft 365 Copilot for enterprise customers and Microsoft 365 Copilot Business for small and medium-sized organisations.
A bit of context
This is not the first time Microsoft has tightened what unlicensed Copilot Chat users receive. In March 2026, Microsoft told organisations with more than 2,000 users that unlicensed staff would lose access to Copilot Chat inside Word, Excel, PowerPoint, and OneNote from 15 April 2026. Fair-use throttling on additional features is a continuation of that direction rather than a sharp departure.
Throttling AI features for free-tier users is a rational response to the cost of running large language model inference at scale. The more notable aspect here is not the throttling itself but the lack of admin controls around it. Organisations cannot see which users are hitting limits or how often, which makes capacity planning and licence decisions harder than they need to be. A sharp fall in prompt activity among heavy users after 9 November 2026 is, for now, the only proxy available.