in the control panel & gt; & gt; STAT & IACUTE & GT; & GT; Notification of Products Power & Aacute; Manually send the warning to all customers who want to be communicated when the product returns to stock.
in the control panel & gt; & gt; tools & gt; & gt; Email Templates Power & Aacute; Create the notification email
in the control panel & gt; & gt; Cat & aacute; By editing a product below the quantity power & aacute; automatically notify all customers who want to be communicated when the product returns to stock.