Hello Everyone; I want to prepare an excel sheet which has some constraints, first af all weekly number of products which will be produced are defined by Production Planning department each product has a different St. (production) time and each belongs different carline. (astra, meriva, corsa). Totaly can reach 400 product have to be produced in a day. To produce those products I have 18 boards, ı want to balance the st times and decide which product will be produced after which product and I also has to consider the type of boards I have (meriva, astra,corsa). If st of one product is longer the another product's st should be short and the other one is little bit longer again. also according the take rate of family in Jig.