Rules and notification emails can be set up at a company level by selecting Setup at Inventory / Product Requests to indicate which change in status of a Product Request will trigger the sending of an email to selected recipients. This will use the company From mail host and information set up at Hub / Setup / Company Preferences. The To list can be set up or modified at any time and those emails on the current Product Request form line will receive an email when those statuses change.
A Status must be indicated in order for email notifications to be sent.