Forum Discussion
Chat with external contacts - possible without them being in a Team?
Is it possible to send a chat message to an external contact who isn't a member of one of my Teams/channels? The only way I can get it to work is if I add them to a Team 1st.
Chris Hughes Its possible and you need to check if External Access is enabled. .
https://docs.microsoft.com/en-us/microsoftteams/manage-external-access
Use external access when:
You have users in different domains who need to collaborate. For example, Rob@contoso.com and Ann@northwindtraders.com are working on a project together along with some others in the contoso.com and northwindtraders.com domains.
You want the people in your organization to use Teams to contact people in specific businesses outside of your organization.
You want anyone else in the world who uses Teams to be able to find and contact you, using your email address.