Team Member can't see Project and not getting notification when added as team member on a project?

Hello,

Firstly I assigned 'Project Team Member' role to a user and given data access to BU. When I am adding that user as a resource on a project, the user is not getting a notification or a alert saying that "He/She has been added to a project as Team Member". Do users don't get any alert or mail when they have been added on a project?

And secondly, the user is unable to see that project on which he/she is been assigned as 'Team member', why? Am I missing something?

Thanks and Regards.