woocommerce/docs/code-snippets/unhook--remove-woocommerce-emails.md

post_title
Unhook and remove WooCommerce emails

This code allows you to unhook and remove the default WooCommerce emails.

Add this code to your child theme’s functions.php file or via a plugin that allows custom functions to be added, such as the Code snippets plugin. Avoid adding custom code directly to your parent theme’s functions.php file, as this will be wiped entirely when you update the theme.

if ( ! function_exists( 'YOUR_PREFIX_unhook_woocommerce_emails' ) ) {
	/**
	 * Callback for woocommerce_email action hook
	 *
	 * @param WC_Email $email_class An Email class instance.
	 * @return void
	 */
	function YOUR_PREFIX_unhook_woocommerce_emails( $email_class ) {
		/**
		 * Hooks for sending emails during store events.
		 */
		remove_action( 'woocommerce_low_stock_notification', array( $email_class, 'low_stock' ) );
		remove_action( 'woocommerce_no_stock_notification', array( $email_class, 'no_stock' ) );
		remove_action( 'woocommerce_product_on_backorder_notification', array( $email_class, 'backorder' ) );

		// New order emails.
		remove_action( 'woocommerce_order_status_pending_to_processing_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
		remove_action( 'woocommerce_order_status_pending_to_completed_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
		remove_action( 'woocommerce_order_status_pending_to_on-hold_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
		remove_action( 'woocommerce_order_status_failed_to_processing_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
		remove_action( 'woocommerce_order_status_failed_to_completed_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );
		remove_action( 'woocommerce_order_status_failed_to_on-hold_notification', array( $email_class->emails['WC_Email_New_Order'], 'trigger' ) );

		// Processing order emails.
		remove_action( 'woocommerce_order_status_pending_to_processing_notification', array( $email_class->emails['WC_Email_Customer_Processing_Order'], 'trigger' ) );
		remove_action( 'woocommerce_order_status_pending_to_on-hold_notification', array( $email_class->emails['WC_Email_Customer_On_Hold_Order'], 'trigger' ) );

		// Completed order emails.
		remove_action( 'woocommerce_order_status_completed_notification', array( $email_class->emails['WC_Email_Customer_Completed_Order'], 'trigger' ) );

		// Note emails.
		remove_action( 'woocommerce_new_customer_note_notification', array( $email_class->emails['WC_Email_Customer_Note'], 'trigger' ) );
	}
}
add_action( 'woocommerce_email', 'YOUR_PREFIX_unhook_woocommerce_emails' );