I have one situation here, i have one manufacturing company . I need to track each products has unique serial number and lot number. For example i am manufacture one engine, in that we have lots of bill of materials , means 100 screws , 50 wheels, 5 stroke pedals, 20 bushes....etc, now if each products of these bill of materials making lot number based on the day thats was manufactured, so the lot number can be repeated , and each products of these has unique serial number.how can i achive my requirement through odoo . If i found some apps named as Prduct unique serial number, its not satisfying my requirements. Is there is any other one?? Please help me .