MC1317836

Microsoft Teams: Unblock users to send message while file is uploading in the background

[What and Why]

Users are currently blocked from sending messages in Microsoft Teams while a file upload is in progress, which can disrupt real-time collaboration. With this update, file uploads will occur asynchronously in the background, allowing users to continue sending messages without interruption.

This message is associated with Microsoft 365 Roadmap ID **560813**.

[Rollout Schedule]

  • Targeted Release: Rollout will begin in mid-June 2026 and is expected to complete by late June 2026.
  • General Availability (Worldwide): Rollout will begin in late June 2026 and is expected to complete by late June 2026.

[Impact on Your Organization]

Who is affected

All Microsoft Teams users who send files in chats or channels

Platforms/Services

  • Microsoft Teams
  • Desktop (Windows, Mac)
  • Web
  • Mobile (iOS, Android)

What will happen

  • Users will be able to send chat messages while files are uploading.
  • File uploads will occur asynchronously in the background.
  • The message input box will no longer be blocked during uploads.
  • There are no changes to how files are stored or shared.
  • Existing compliance, retention, and security policies remain unchanged.
  • This feature will be enabled by default for all tenants.

[Action Required / Recommendations]

  • No action is required.
  • Consider informing your users about improved file upload behavior in Teams chats.
  • Update internal training or support documentation if you reference file-sharing workflows.

[Compliance considerations]

No compliance considerations identified. Review as appropriate for your organization.