Stock -> Product -> Add


Key in the information for the Product


IMPORTANT! click the Serial No. Item and save when after key in the info, then done ya



After, In Purchase invoice or Good received note,


In Body, when after you done key in the information and click save, it will pop out a message to key in Serial No.


Key in Here manually or if Product to many you can use generate to key 


After Done Generate Click on all and save it