Short answer: to add a GIF to a Teams chat, open GIPHY, find the GIF you want, right-click it and choose Copy image, then paste it into the chat with Ctrl+V. This works even when an administrator has turned the GIF button off.
Administrators can disable the GIF button in Microsoft Teams, but that doesn’t mean you can’t post GIFs! This is a simple workaround.
Ctrl+V.That’s it! The GIF will appear in the chat even though the GIF button is disabled.


If you’re an admin and want to manage GIF settings rather than relying on workarounds:
admin.teams.microsoft.comYou can also manage this via PowerShell:
# Disable GIFs
Set-CsTeamsMessagingPolicy -Identity Global -EnableGiphy $false
# Enable GIFs with moderate filtering
Set-CsTeamsMessagingPolicy -Identity Global -EnableGiphy $true -GiphyRatingType Moderate

If you can’t see the GIF button under the compose box, it is almost always a messaging policy setting rather than a fault. Check the Use Giphy option in the policy assigned to you: if it is Off, the button is hidden for everyone on that policy.
A few other things to rule out: