Is lead time usable on production

Oh I see.
Regarding the lead time, is it usable to production? so that it can represent Work In Progress?

There is already a “Production Lead Time” on the product (variant) which is used to compute the planned start date of the production from the planned date.
As the production is any way composed of two sets of moves input and output, the planned start date is used for the input and the planned date is used to the output.