Additional chat-related features and issues within Microsoft Teams for business
Dear @stan serbanica
This issue typically occurs because Messaging Policies assigned to your user account in the Microsoft Teams Admin Center have disabled the chat feature.
Because these permissions are centrally managed by your organization's internal IT department, individual end-users cannot unblock this setting themselves your IT Administrator or account owner must enable it for you.
How to Resolve This Issue
Step 1: Contact Your IT Administrator or Owner
Reach out to the person or team that manages your Microsoft 365 account (e.g., your workplace IT help desk, school administrator, or tenant owner).
Step 2: Share Admin Instructions to Fix the Account
Ask your IT Administrator to perform the following steps to grant you chat access:
- Sign in to the Microsoft Admin Center > Microsoft Teams Admin Center as a Global Administrator or Teams Administrator.
- Navigate to Teams policies (or Messaging policies) in the left navigation menu.
- Select the policy assigned to your account (e.g., Global (Org-wide default)).
- Toggle the Chat setting to On.
- Click Save.
Note: Policy changes applied by your administrator can take up to 24 hours to propagate across all Microsoft servers, though signing out and signing back into Teams often speeds up the process.
For official details, refer to Microsoft Documentation: Manage messaging policies in Teams
I hope this helps clarify things. Thank you so much again for asking.