Please, please For manufacturing my product C, i have to consume products A and B and also produice Wastes (assume D). I have to create a bill of materials that will help making A+B=C+D. A and B are component, C is a product and D is configured as a sub production. The problem that i'm facing is in the Make Order. the green arrow does not appear before the product D that i have configure as a sub product and i'm not able to type the quantity that has been excatly produced. In a second point, i want to know if there is a configuration that can make a system accepting the use of less that the exact quantity of A and C and producte C and D. Because i remark that after creating a make order, chose product A that i want to produce and clik on the make button, it seem that i'm obliged to consume a total material of A and B. Else, i'll not terminate the production.

Thank you for your help,