how can we increase the number of Private Channels in Teams

Question

Hi,

We currently have a limit of 30 Private Channels, but i saw online this was going to be increased late 2025. Is it still planned to happen? Will it be automatic or do we need to request it?

Answer 1

Hi @Mehek Asif,

Good day and thank you for detailing your issue so clearly.

I'd love to clarify some confusion for your question.

Microsoft announced and confirmed that Private Channels are no longer limited to 30 per team. After the update:

• Up to 1,000 channels per team total (standard + shared + private combined)
• Private channels can have up to 5,000 members (previously 250)
• Meetings are supported in private channels
• Compliance (retention, eDiscovery, DLP, legal hold) is handled at the team’s Microsoft 365 group level, not individual user mailboxes

This change was officially communicated in Message Center notification MC1134737.

The rollout began in late 2025 and is progressing on a tenant‑by‑tenant basis into early 2026. During this migration period, existing private channels continue to operate normally without any impact. Once the migration is completed for your tenant, the updated private channel limits are applied automatically, and no support request or manual enablement is required.

If you are still seeing the 30 private channel limit, this indicates that your tenant has not yet completed the private channel migration. Migration start and completion timelines vary by tenant, and the limit will update automatically once the migration is finished.

Administrators can monitor the migration status using the following PowerShell cmdlet:

Get-TenantPrivateChannelMigrationStatus

No action is required to increase channel creation limits, as the limits are updated automatically once the migration is completed.

However, administrators should review and update compliance policies. Private channel messages are now stored in the team’s Microsoft 365 group mailbox, which means retention, DLP, legal hold, and eDiscovery policies must be applied at the group level rather than to individual user mailboxes to prevent any compliance gaps.

Administrators should review the following checklist:

1. Add your Teams’ M365 group mailbox to Purview DLP/eDiscovery/Retention scopes.
2. Verify Teams channel messages retention applies across standard/shared/private.
3. During migration, ensure searches/holds include both group and user mailboxes.
4. Monitor progress with the cmdlet above.

I hope this provides enough clarity and helps you stay inform with your current situation.

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Thank you for your patience and your understanding. If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you. 

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Answer 2

The current documented limit for private channels is 30 per team (counting deleted private channels still in their 30‑day recovery window), with up to 250 members per private channel.

The November 13, 2025 Teams admin release notes describe an upcoming change where:

• Private channels move to a new compliance model (using a shared mailbox per private channel).
• Teams will support more than 30 private channels, up to the overall 1,000 channel limit per team.
• Private channel member limits increase from 250 to 5,000.

This change is described as a platform update, not something that requires a per‑tenant request. When it is rolled out to a tenant, the increased limits apply automatically; there is no separate enablement step documented.

Until that rollout is complete for a tenant, the effective limit remains 30 private channels per team as documented in the limits article.

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References:

• Limits and specifications for Microsoft Teams
• IT Admins - Private channels in Microsoft Teams
• Release notes for Microsoft Teams admin features