Although the actual solution here did not fit my question, some of the other content did. I was trying to find out if it is possible to use Microsoft Teams through Upwork, because when a prospective client requested my email address to send a Teams meeting invitation, Upwork flagged the email address with a recommendation to communicate through Upwork, not outside it. The client is in Seattle, WA; I am in southeastern PA; and there is an offshore team member in Ukraine. The statement about managing a project outside Upwork in Teams or the other app mentioned, but getting paid through Upwork, seems to indicate that if the client is accustomed to using Teams asking to go through Upwork isn't feasible. If I'm making a wrong assumption, please chime in. Thank you.