[@robin-w Moderator 5 years, 6 months ago]

you need the id=1 to be the actual forum ID.

so go to

dashboard>forums>all forums and click the ‘edit’ button of a forum, you will see in url at the top

eg

http://mysite.com/wp-admin/post.php?post=29602&action=edit

so 29602 is the ID of that forum