Review permission requests

Handle requests for membership and for additional user permissions

With respect to the public MS Teams workspaces, any internal user can make themselves a team member.
As for the SharePoint public site workspaces, any internal user can submit a request for team membership to the workspace owner.
Existing team members within a workspace can request additional permisions, extending their existing permissions, to increase their scope of activity within the workspace.

As a workspace owner, it is your job to review and approve or reject these permission requests.

As soon as such a request for membership or additional permissions/roles related to your workspace has been submitted, this will be signaled to you as the workspace's owner, by email and also in your activities dashboard as a new item in your Your Pending Requests list.

See also:

Handle membership requests to your workspace

Handle role requests from your workspace team members