Microsoft Releases New Built‑In Tool to Simplify Slack to Microsoft Teams Migration

Microsoft is streamlining the move from Slack to Teams with a new migration tool built directly into the Microsoft 365 admin center. This tool ensures a smooth transfer of channel content, which helps businesses consolidate collaboration without the usual headaches of platform migration.

With the new Slack to Teams migration tool, customers will be able to migrate data from their Slack workspace to Microsoft Teams. The migrated data will include Slack channels (public and private), channel messages, channel file attachments, channel canvas and list content, and Slack channel membership (owners and members).

“The migration tool runs in the Microsoft 365 admin center and uses Slack export packages and online access to the customer’s Slack workspace to retrieve customer data. Customers generate Slack export packages through the standard Slack workspace administration interface,” Microsoft explained.

How can IT admins use the Slack to Microsoft Teams migration tool?

Administrators will be able to see this Slack to Teams migration tool appear on the Migration and imports page in the Microsoft 365 admin center. On the setup page, IT admins will specify a Slack export file and select a workspace to migrate. Moreover, they will be able to run migration tasks and monitor their execution status on the migration page.

According to Microsoft, this new feature will be enabled by default, and IT admins will be able to review which Slack channels are eligible for migration. Initially, the Slack to Teams migration tool will support only channel messages, but future updates will include additional Slack content types.

Guidance for IT admins: Streamlining migration and preparing for change

For IT administrators, this built‑in Slack to Teams migration tool streamlines cross‑platform consolidation by surfacing eligible Slack channels and guiding content transfer directly from the Microsoft 365 admin center. It also provides task execution and status monitoring, which reduces manual effort and custom scripting.

Admins should prepare change‑management communications and helpdesk readiness ahead of rollout, and align channel mappings (public/private/shared) with Teams governance policies. They should also review compliance and retention configurations to ensure migrated conversations inherit appropriate Teams policies and audit trails.

Microsoft noted that this new tool is currently available in public preview for Targeted Release customers. The company plans to make it generally available for all commercial customers in March 2026. You can learn more about how to complete the migration process on this support page.