Register Teams As The Chat App For Office Setting. Set up your team’s space with all the apps you need so you can stay in just one place instead of jumping around. Mine was largely set to choose a default.
This opens the file type and protocol associations for teams. You will need to restart outlook and any other office applications you have open. On the general tab under application, select register teams as the chat app for office (requires restarting office applications).
Use the web app instead get started with your org.
If you now press the messaging button , it will now start teams instead of s4b. On the general tab under application, select register teams as the chat app for office (requires restarting office applications). While you’re here, also disable “ register teams as the chat app for office…. Teams is set to register teams as the chat app for office (requires restarting office applications).