MS Teams - Create an Approval from a chat

To create an approval from a Teams chat:

Make sure you have Approvals installed in Microsoft Teams.
From the chat window, select (…) More options, then select Approvals from the listed apps.
Fill in the name of the request, who needs to approve it, any additional info, and add an attachment if needed.
If there’s more than one approver, you can select All must approve if you want.
Select Send. You’ll be able to view the request in the chat, or in the Approvals app hub.

Note: When you create an approval from a Teams chat, you can only add approvers that are already in the chat.