There are two commands you can type in Teams.
@Traceless
This command directs Traceless to generate an empty trace that can be filled out by your peer.
@Traceless mfa [person you would like to send an mfa push]
e.g. @Traceless mfa @Peter
This command will send an MFA push to a user or teammate of your choosing. The order of words does not matter. For example, you could type 'mfa @Peter @Traceless'.
Note that the type of MFA push (e.g. Duo or MS Auth) is dependent on your admin's settings.
For all commands,
you must select Traceless from the pop-up menu.
When your command is highlighted in blue,
it means that it is successfully tagged in Teams.
The same logic applies when mentioning a user.
Be sure to select your user from the given pop-up menu and that the tagged user is highlighted in blue.