Hi,

When you use the Replenishment Report in Odoo, the system automatically updates the quantity on any existing open Manufacturing Orders (MOs) for the same product instead of creating a new MO. This is because Odoo assumes the open order is still adjustable and tries to optimize production by merging requirements. However, in a real production environment, once a job is released to the shop floor and printed, the quantity should not be changed, as this creates confusion and forces you to track down outdated job sheets. To prevent this, you can either confirm or lock MOs once they are released, which stops replenish from altering them and ensures that any new demand creates a fresh MO, or you can customize the replenish logic so it always generates new MOs regardless of existing ones. This way, the integrity of shop-floor jobs is maintained and new requirements are handled cleanly without overwriting older ones.

Hope it helps.