I tried the Order function at the request page and the following happen
1. Due to the unavailability of PO type at the dialogue box that appear from the order function at the request page is clicked, when the Purchase Order is generated, SAGE assigns PO type another PO type which is not accessible by ordinary users except SAGE administrator.
2. Request page is blocked after the lost PO is generated, unless issued PO is found and assigned with the correct PO type to make it accessible or deleted