Allow specific user to invite guest users into a specific Teams

Hi Steve_Roh,

to control who within your organization can invite guests, you can use the Guest inviter role:

1. Create a security group for guest inviter users:

   • Sign in to the Microsoft Teams admin center using a Global Administrator or Security Administrator account.
   • Navigate to Groups and select All groups.
   • Create a new Security group.
   • Provide a name and optional description.
   • Ensure the group can have roles assigned.
   • Add owners and members to the group.
   • Assign the Guest inviter role to the group under Roles.
   • Confirm the creation of the group.
     
     

2. Configure external collaboration settings:

   • After setting up the security group, adjust the external collaboration settings to allow only users with the Guest inviter role to invite guests.
   • Note that Global Administrators retain the ability to invite guests regardless of these settings.
   • In the Teams admin center, navigate to External identities and select External collaboration settings.
   • Choose the option to restrict guest invites to specific admin roles.
   • Save your changes.

Limit who can invite guests | Microsoft Learn