Hello, 

We are currently in Odoo 14. We set up the manufacturing lead time for the manufactured products, but when we schedule the work orders for the date we want, we notice that the system will generate a new MO, saying we can build it sooner. 

We have an item called a Gas Train that takes a total of 3 days to build
We have the following work centers 

Kitting - where they will pull all the products for that bill of material and stage (takes about 30 mins, but we call it a day)

Gas Train - They will assemble all the raw materials to create the gas train, which takes about two days. 

This item goes on our finished boiler, which we need to have completed 14 days before the order ships to the customer. The ship date is Sept 14th. We would schedule the kitting to start on 8/28, and then they would build the gas train on 8/30 to finish on 9/1, which would then travel to our Boiler Final Assembly section. The scheduler will create a duplicate MO, saying you can build it sooner. Has anyone else ever had this issue?