Hi,

For long manufacturing cycles, I would not suggest handling this only with internal transfers, because it can make it harder to track the actual material consumption against the Manufacturing Order.

In Odoo, the better approach is to record the consumed quantity directly on the MO components. You can update the actual consumed quantity based on what is really used during production. If the material consumption is not always the same as the BoM quantity, enable flexible consumption for the BoM/components so Odoo allows different consumed quantities.

For real-time inventory impact, make sure:

1. The raw materials are storable products.
2. The MO component moves are validated when materials are actually consumed.
3. Inventory valuation is properly configured if you also need real-time accounting impact.
4. If the production takes many weeks, consider splitting the production using work orders, partial production, or backorders so consumption can be recorded step by step.

If standard Odoo does not update the stock exactly at the moment you need, then a small customization may be required to validate partial component consumption during the MO process instead of waiting until the full MO is completed.

So the main idea is: record material consumption from the MO itself, not only by manual internal transfers. This will keep stock, traceability, and costing much cleaner.

Great question - both previous answers point in the right direction. Here is the complete native solution in Odoo 19:

Native Solution: Manual Component Consumption + WIP Journal Entries

Step 1: Enable Manual Component Consumption
On the BOM: Manufacturing > Bills of Materials > select your BOM > Miscellaneous tab > set Component Consumption = Manual
This allows you to consume components individually at any point during the MO.

Step 2: Partially consume during production
1. Open the Manufacturing Order
2. Go to the Components tab
3. Update the "Done" quantity for the components you want to consume NOW
4. In the Operations/Detailed Operations view, validate individual stock moves using the "Validate" option
5. Each validated move goes to "Done" state immediately, reducing stock in real time
6. The MO remains open (Confirmed state)

Step 3: Use WIP Journal Entries for accounting
Odoo 19 has a native WIP (Work in Progress) journal entry feature:
Manufacturing Order > click the "WIP" button or find it under the accounting actions
This creates journal entries: DR WIP Account | CR Raw Material Stock Valuation
These entries capture the accounting impact of materials consumed so far without closing the MO.

Step 4: Post final entries when MO is complete
When you mark the MO as Done, Odoo posts the final entries for finished goods and reverses/completes the WIP entries.

Docs reference:
https://www.odoo.com/documentation/19.0/applications/inventory_and_mrp/manufacturing/basic_setup/work_in_progress.html

When manufacturing processes take extended periods to complete, temporary work-in-progress (WIP) accounting journal entries can help to accurately reflect the value of partially completed goods in financial statements, as well as potential insights on where cash might be tied up in the manufacturing process.

The Manufacturing app provides the option to manually post and reverse WIP journal entries associated with an ongoing manufacturing order (MO) to account for the real cost of components, work centers, and labor that have already been incurred at the time the entry is posted.

https://www.odoo.com/documentation/19.0/applications/inventory_and_mrp/manufacturing/basic_setup/work_in_progress.html

Hello, 

Yes, Odoo does allow partial consumption on Manufacturing Orders, but by standard behavior, materials are only reserved during production and stock is deducted only when the MO is marked as Done.

To achieve your requirement (real-time inventory impact during production), you can consider:

• Using Manual Consumption and recording consumption in the Work Orders or MO “Consume” tab step-by-step
• Validating stock moves progressively via backflush adjustments or intermediate stock moves
• Alternatively, implementing a custom workflow to force stock moves to “Done” during partial consumption

For long production cycles like yours, this is a common gap and typically requires either a process workaround (e.g., staged transfers) or light customization to post inventory in real time while keeping the MO open.

Hope this works for you! If you need any help implementing this or want a more optimized approach, feel free to reach out for further discussion

Regards,

Zehntech Technologies Inc.

santosh.sekwadia@zehntech.com