Admin → Team Access lists everyone in your workspace.
Change a role
Each member has a role that controls their access — what they can view, edit, and publish. Change it from the member's row; the change takes effect immediately.
Remove someone
Remove a member from their row. They lose access straight away. Forms, workflows, and responses they created stay in the workspace.
Roles & Permissions
If you need finer-grained control, Admin → Roles & Permissions lets you define what each role can do.