You are the administrator for an organization.
A user named User1 can communicate with User2 from an external domain by using chat. User1 is not able to add User2 to a team.
You need to ensure that User1 can add User2 to a team.
What should you do?
A. Enable external access.
B. Confirm whether the domain is in the external access allowed list.
C. Ask the administrator of the external domain to add your domain to their Allowed Domain list.
D. Use the Microsoft Teams web app.
E. Enable guest access.
