add sub_menu to a sub_menu (multiLevel sub_menu) in admin menu in wordpress

I'm looking to add a submenu, to another sub_menu that already exists. In WordPress, there are just 2 levels of admin menu (with functions: add_menu_page and add_submenu_page), my goal is to add another sub_memu, to be in level 3, to the one in level 2, how can I do that?

Topic add-menu-page sub-menu admin-menu Wordpress

Category Web

1
answered at

I don't think it's possible to have a 3rd layer menu. Look at the definition of [add_submenu_page] . https://developer.wordpress.org/reference/functions/add_submenu_page/ .It states that you need to include the parent slug. You can attempt to do it with some front end work around.

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