Teams Events Licensing Changes 2026: Enterprise Features, Premium Legacy Limits and Attendee Packs

This happened in two phases, and some coverage blends them together. Here is the timeline, what each license gets, and what Teams admins should do next.

Two phases: April, then September​

Phase one took effect April 1, 2026. Microsoft's licensing documentation says that as part of the April 2026 licensing changes, event features that were previously part of Teams Premium moved to Teams Enterprise. Teams Premium licenses purchased after April 2026 don't directly provide access to these capabilities.

The Premium add-on still exists. Microsoft says Teams Premium continues to offer advanced meeting protection, advanced communication (like the Queues app), branding and personalization, and intelligence capabilities. Premium now covers protection, branding and AI features. The events features no longer come with it.

Phase two starts at the end of September 2026. Neowin reported a worldwide restructure rolling out in late September and cited Microsoft 365 Message Center item MC1479512. Microsoft's public Learn pages don't mention that ID, so treat it as reported rather than confirmed. Topedia, a blog that tracks Microsoft licensing, backs up the timing. It says Microsoft is restructuring Teams Events capabilities into two license-based categories: Foundational event features and Advanced event features, and that the updated Teams Events licensing should start at the end of September 2026.

Summary: The Premium-to-Enterprise move is six months old. The new part is the formal foundational-versus-advanced split, which sets which licenses get which event tools and how many attendees each allows.

Which licenses get which tier​

Microsoft's current licensing overview, last updated September 12, 2026, splits the licenses like this:

SMB tenants should look closely at this table. In January, 4sysops reported that the advanced town hall and webinar features moving out of Premium would apply to licenses bundled with Microsoft 365 E3, E5, Business Basic, Business Standard, and Business Premium. Microsoft's current table puts all three Business SKUs in the foundational tier only. If your small business expected the full events toolkit to arrive with its Business Premium subscription, the current documentation says otherwise.

Microsoft's April-changes page also says that Hide attendee names is no longer available to Microsoft 365 Business or Microsoft 365 Frontline customers who purchased Teams Premium after March 31, 2026. You must upgrade to Microsoft 365 Enterprise to access this feature. The newer licensing overview, however, lists hiding attendee names as a foundational capability. The two pages disagree, so test the feature in your tenant before you promise attendee anonymity to anyone.

What each tier can actually do​

Both tiers allow an unlimited number of events. The differences are in attendee caps and in production features.

Foundational tier:

• Organizers can create and host events with up to 1,000 attendees using the following foundational event capabilities. They can also host events for up to 10,000 attendees in a view-only experience (with Q&A).
• Included features: attendee mic and camera, attendee chat, Q&A, reactions and raise hand, basic registration with a customizable form, hiding attendee names, and attendance reports.

Advanced tier:

• Up to 3,000 attendees in interactive events (reactions, raise hand, polls, Q&A) and 10,000 in view-only events.
• Everything in the foundational tier, plus:
  • custom email templates and custom reminder send times
  • waitlists, registration windows and manual approval of registrants
  • spotlight controls over what attendees see
  • RTMP-In, for producing an event from an external hardware or software encoder
  • Microsoft eCDN, or a partner eCDN provider of your choice
  • Ultra-Low Latency streaming and 1080p video
  • Silent Test, for simulating large events to check broadcast and network capacity
  • Teams event insights, eCDN analytics monitoring, and attendance and engagement reports

Microsoft notes that some of these features are currently being rolled out to Teams Enterprise and might not be available in your organization yet. If a feature is missing today, it may just be a staged rollout rather than a licensing gap.

Also note what a view-only event means. Attendees can watch live and use Q&A, but they can't react, chat, raise a hand or answer polls. Organizers pick interactive or view-only when they schedule the event and can't switch it afterward. Changing the type means creating a new event, and registrants may need a new link.

Summary: The foundational tier covers a solid all-hands for up to 1,000 people. The encoder feeds, eCDN, low-latency streaming and analytics that professional productions depend on are in the advanced tier.

Attendee Capacity Packs: the paid route past 3,000​

For events above 3,000 interactive attendees, Microsoft now sells separate add-ons. The company's FAQ describes Attendee Packs as new paid add-ons that allow organizations to host larger events with interactive features beyond the 3,000 attendee limit. They're assigned in the Teams admin center.

How the packs work, according to Microsoft's documentation:

• Sizes: 5,000, 10,000, 20,000, 35,000, 50,000, 75,000 and 100,000 attendees. Some early third-party summaries listed a 25,000 tier. Microsoft's current page says 20,000.
• Capacity only: A pack raises the attendee cap and unlocks no other features. It's an add-on for Teams Enterprise, so it won't turn a foundational-tier organizer into an advanced one.
• One pack per organizer: A tenant can buy several packs, but each organizer can hold only one at a time.
• Per-event cap, not a shared pool: The pack sets the maximum capacity per event, and the organizer can run unlimited events while it's assigned. The limit counts people in the event at the same time, so when attendees leave, others can take their seats. Organizers, co-organizers and presenters don't count toward it.
• Tenant ceiling: An organization can run up to 50 concurrent events across all organizers.
• Available in: commercial, worldwide public sector, EDU, GCC, GCC High, DoD and nonprofit environments.

There's also some practical advice for very large events: Microsoft says we recommend using Teams Events Services for large events with more than 20,000 attendees. The 100,000-seat pack is available, but Microsoft suggests getting help for anything that big.

Two gotchas that will cause support tickets​

1. Upgrading a pack doesn't update scheduled events. If an organizer gets a larger pack after scheduling an event, the event keeps its old capacity. The organizer has to edit it in the scheduling form.
2. Removing a pack can break upcoming events. Those events may no longer qualify for their planned capacity. Teams warns the admin in the admin center, emails the organizer a list of affected events, and shows alerts in the Events app and the green room. Enforcement happens at event time, based on the pack the organizer holds then.

Legacy Teams Premium holders: you have time, but not forever​

Existing customers keep what they paid for, for now. Microsoft says customers who purchased Teams Premium licenses before April 1, 2026 will continue to have access to all the previously included Teams Premium features and product experiences included with these licenses until they expire.

That protection ends with the term. Microsoft's FAQ says legacy Premium organizers may continue hosting events with up to 100,000 attendees through the end of their current Teams Premium licensing term. After that term expires, hosting events above the standard Teams Enterprise limits will require the appropriate Attendee Pack.

Here's where this can go wrong. Say your quarterly town hall draws 15,000 interactive viewers under a legacy Premium license, and the Premium term renews in November. Unless someone buys and assigns at least a 20,000-seat pack first, the December town hall runs into the 3,000 interactive cap. Nobody is warned until the event is close. The calendar decides this one, not the feature list.

Service protection: one-time passcodes for outsiders​

Neowin also highlighted a service-protection clause. Microsoft's documentation says the company reserves the right to require email one-time passcode (eOTP) verification from external event participants to protect service health and guard against fraud or abuse. Microsoft calls this a protection measure rather than a licensed feature, and it isn't tied to any SKU tier.

For public webinars, this can add a step for external registrants. Mention it in your event instructions so attendees aren't caught out by an unexpected verification email.

Reading between the lines​

Neowin framed the change as Microsoft pushing large organizations toward bigger enterprise bundles. Microsoft's documentation doesn't say that, so treat it as interpretation. There's also a fair counterargument: E3 and E5 tenants got webinar and town hall features without paying the old roughly $10-per-user Premium add-on. Jess Coburn put it this way: most companies have a small group of users who genuinely need Premium and a much larger group that was licensed for it because eCDN or town halls were the only way to get those features.

Who loses out, then?

• SMB and frontline tenants end up in the foundational tier, capped at 1,000 interactive attendees.
• Organizations that ran huge events on a handful of Premium seats now have to buy capacity packs. Coburn notes that if you used to run 50,000-person company-wide meetings on a single Premium license, that workflow now needs a capacity pack sized to your event.

For everyone else, the practical effect is that Premium should be bought for its protection, branding and AI features, not for events.

Admin checklist​

1. Audit organizer licenses. Find everyone who runs Teams events and note whether each holds a foundational or advanced license.
2. Assign an eligible Enterprise license to organizers who need the full toolkit. A new Teams Premium license doesn't provide it.
3. Find your legacy Premium expiration dates. Match them against scheduled events above 3,000 interactive or 10,000 view-only attendees.
4. Size and buy capacity packs before the legacy term ends. Remember the one-pack-per-organizer rule and the 50-concurrent-event limit for the tenant.
5. Edit existing events after upgrading a pack. Capacity doesn't update on its own.
6. Update internal guidance. Document the tier limits, the rule that event type can't be switched after scheduling, and possible eOTP prompts for external guests.
7. Re-check your Teams Premium spend. If events were the only reason you bought it, you may be able to reduce it at renewal.

The bottom line​

The change is less dramatic than "Microsoft strips event features" suggests, but you do need to act on it. Advanced Teams events have moved from a paid add-on to Enterprise and faculty licenses. SMB and frontline tenants get a capped foundational tier, and large broadcasts now require a separately purchased capacity pack. Admins should check their renewal dates before a big event does it for them.