Tips on Customizing Mini Program API

How to Hide Mini Program API Admin Menus

function plt_hide_wp_mini_program_menus() {
	//Hide "小程序".
	remove_menu_page('miniprogram');
	//Hide "小程序 → 基本设置".
	remove_submenu_page('miniprogram', 'miniprogram');
	//Hide "小程序 → 订阅统计".
	remove_submenu_page('miniprogram', 'subscribe');
	//Hide "小程序 → 任务列表".
	remove_submenu_page('miniprogram', 'task');
	//Hide "小程序 → 使用指南".
	remove_submenu_page('miniprogram', 'guide');
}

add_action('admin_menu', 'plt_hide_wp_mini_program_menus', 11);

Where do I put this code?

How to Hide Mini Program API Meta Boxes

function plt_hide_wp_mini_program_metaboxes() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Hide the "文章设置" meta box.
	remove_meta_box('post-box', $screen->id, 'normal');
	//Hide the "页面设置" meta box.
	remove_meta_box('page-box', $screen->id, 'normal');
}

add_action('add_meta_boxes', 'plt_hide_wp_mini_program_metaboxes', 20);

How to Hide the "WordPress 小程序" Dashboard Widget

function plt_hide_wp_mini_program_dashboard_widgets() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Remove the "WordPress 小程序" widget.
	remove_meta_box('applets_dashboard_widget', 'dashboard', 'normal');
}

add_action('wp_dashboard_setup', 'plt_hide_wp_mini_program_dashboard_widgets', 20);