How can i logout a user in Postman

which parameter should i add that the user will logged out?

I tried the user-token and the user objectId but i get every time ann error.

Thanks for your help.

You should not use login/logout in postman.
If you want to send the request as authenticated user you should add user-token to the request headers. Otherwise you send the request as not authenticated user.

Regards, Olga