After booking the job of customers you produce it in your lab. Here, you also require for maintaining some essential information those are essentially needed for production.
To access this window you have to go through with this tag; Customer/Job management> Production Entry.
A window will open in which you at first require to fill up certain basic information like Entry Type, production Entry Date, Required printing copy, Booking Types and Plant Name. Later, you only need to put down Job No and quantity of products but if you want to change Size or Type you can do it from here.