Tips on Customizing Official SalesWizard CRM

How to Hide Official SalesWizard CRM Admin Menus

function plt_hide_official_saleswizard_crm_menus() {
	//Hide the "SalesWizard CRM" menu.
	remove_menu_page('edit.php?post_type=sales_wizard_report');
	//Hide the "SalesWizard CRM → All Reports" menu.
	remove_submenu_page('edit.php?post_type=sales_wizard_report', 'edit.php?post_type=sales_wizard_report');
	//Hide the "SalesWizard CRM → All Webhooks" menu.
	remove_submenu_page('edit.php?post_type=sales_wizard_report', 'edit.php?post_type=sales_wizard_webhook');
}

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

Where do I put this code?

How to Hide Official SalesWizard CRM Meta Boxes

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

	//Hide the "Contacts" meta box.
	remove_meta_box('sales_wizard_report_metabox_id', $screen->id, 'normal');
	//Hide the "Webhook settings" meta box.
	remove_meta_box('sales_wizard_app_webhook_metabox_id', $screen->id, 'normal');
}

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