For more detailed information, visit https://www.microsoft.com/en-ww/microsoft-365/support.
You can use Microsoft Teams to work together on a project with your employees and people outside the business, like your clients.
Your client will receive an email invitation from Teams, which will inform them that they need a free Microsoft account to join the team. They can create an account using their existing email address by following the instructions provided. They can then use Teams on the web or install the Teams app on their computer.