BuddyPress.org

Hello,

We use bbpress, buddypress, and bbp-private-groups in a WordPress installation.
In the Buddypress group settings, the group administrator can also create a forum.

I am looking for a hook to add a specific group from bbp-private-groups to a group forum when creating the group forum:
add_post_meta( $forum_id, ‘_private_group’, ‘group1’, false );.

I tried the hook bbp_insert_forum.
But at that point, the group and the forum are not yet linked.

Does anyone have any idea which hook I can use?
Thank you very much!