Microsoft Teams issue while adding members

[Jithin335]

Hi,

I was actually having a problem while adding members to teams. When I try to add certain mail ID as members its directly coming as Guest  i cant change them to member. I am not sure why this is happening. I am attaching the screen shots. Please help me

If you look at the attached file you can see that when I enter names directly it shows' them as guest other people who are not shown as guest can be added as members 

[#2]

Hello, nothing strange about that. All organizations have guest users and the ones you're seeing are already invited to your organization as a guest (they have a guest account in your org.) and can also be added to the team.