You start one-on-one and group chats the same way, by selecting New chat at the top of Teams. Then type in the name(s) of the person you want to start a chat with in the To field. Once in a chat, you'll be able to send messages that include attached files, links, emojis, stickers, and GIFs.
One-on-one chat:
Once you've selected New chat and entered the person's name, compose your message in the box and select Send. This starts the chat
Chat with yourself:
If you want to draft a message, send files from one device to another, or get to know features a little better, you can start a chat with yourself. Follow the steps above to start a new chat, but this time type in your own name. You can do everything you would in a regular chat. You will see it pinned to the top of your chat list by default.
Pin a Chat for quick Access:
You can pin frequent conversations to the top of your chat list by clicking More Options and choosing Pin.
Delete, hide, or mute chats to keep them out of your way:
You can delete an entire chat conversation, hide the chat from the chat list, or mute it so you stop getting notifications. Click More Options next to the chat and select the command you want to use.
See all your formatting options:
There are many formatting options for messages. To open your formatting, select Format beneath the text box where you type your message. In this view you can select the text you want to format, then choose options like B, I, U to bold, italicize, or underline the text. You can also highlight, change the font size and color, make lists, and more.
There are a few ways to search for and find messages:
Depending on what you remember about the sender of the message or the characteristics of the message, choose how to search for your message.
Find a chat based on the sender's name
Type the sender's name in the Command (search) box at the top of the app. You'll see their name and any group chats listed. Select their name to go to your one-on-one chat with them or a group chat to resume that one.
Find a chat based on a keyword that you remember
Start typing a keyword into the Command (search) box at the top of the app and press Enter. You'll see a list of results that include the keyword.
Filter to show certain types of messages.
From the Chat panel, select Filter and then type in the name or keyword you are looking for. Then select More Filters to narrow your search to specific categories.