This I knew from before, this is how exactly I set subcontracting in my databse. Yesterday I found that only products that were created several months ago, have this issue. New one I recently created work fine with absolutely same setup. Probably there is some hidden attribute, that is not visible withou dev mode. Also originally database was started at 18.0 version, now 18.2 saas

Hi,

Please refer to the link:

1. https://www.odoo.com/documentation/19.0/applications/inventory_and_mrp/manufacturing/subcontracting.html

Subcontracting in Odoo 19: This guide provides a comprehensive overview of setting up and managing subcontracting operations, including handling serial numbers during the receipt of subcontracted products.

2. https://www.odoo.com/documentation/19.0/applications/inventory_and_mrp/inventory/product_management/product_tracking/serial_numbers.html

Serial Numbers in Odoo 19: Learn how to enable and configure serial number tracking for products, and understand how serial numbers are assigned during various operations like receipts and manufacturing.

3. https://www.cybrosys.com/blog/how-to-setup-subcontracting-in-odoo-17-manufacturing

How to Setup Subcontracting in Odoo 17 Manufacturing: A blog post detailing the steps to set up subcontracting in Odoo 17, which can be beneficial for understanding the process in earlier versions like Odoo 19.

4.  https://www.cybrosys.com/blog/how-a-product-is-subcontracted-with-odoo-18

How a Product is Subcontracted with Odoo 18: An article explaining the subcontracting process in Odoo 18, offering insights that are applicable to Odoo 19 as well.

Hope it helps.