I’m reaching out because we’ve encountered an inconsistency in our 3-step manufacturing process in Odoo Online 18 that we need to address before going live.

Our Process:

1. Step 1 – MO Confirmation:
   We confirm a Manufacturing Order (MO) with an initial production quantity of 100 units. Odoo calculates the required components based on the BOM for 100 units.
2. Step 2 – Component Pick-Up:
   We execute the pick-up for all components according to the BOM (for 100 units). After validating the pick-up, I manually check all the “Consumed” boxes in the MO.
3. Step 3 – Adjusting Production Quantity:
   Before production starts, we change the production quantity from 100 to 80 units. Our objective is for the components to be consumed according to the original 100-unit ratio, even though we are producing only 80 units. (here we treat scrap as over consumption for inventory valuation purposes.)

Issue Observed:

For BOMs with multiple components, even though the pick-up is executed consistently (and all “Consumed” boxes are checked after validation and before changing the production quantity), not all component consumptions behave the same. Some components correctly adhere to the 100-unit ratio, while others do not (can be 00 or 80).

Could you please advise on the following?

• Is this behavior expected in Odoo Online 18 for BOMs with multiple components in a 3-step manufacturing process?
• Are there any known configuration issues or patches that address this inconsistency?
• What best practices or adjustments would you recommend to ensure that the component consumption ratios remain consistent when reducing the production quantity?

I appreciate your assistance and look forward to your insights.