I am currently using Odoo 15 and integrating Odoo as an Order Management System to my mobile application using Odoo external APIs. I have already setup the connection between sales order and manufacturing order by selecting "Replenish on Order" and "Manufacture" in products inventory. When I use Odoo sales app to create a sales order it will automatically generates respective manufacturing orders but when I use an external API and pass the same information a sales order is generated but the respective manufacturing orders are not generated.