HI,

1. Create a Bill of Materials (BoM) for the product that will be included in the Sales Order.

Manufacturing Module-> Products ->Bill of Materials

2. Set the product's routes to 'Replenish on Order (MTO)' and 'Manufacturing'.

3. Create a sales order

When the Sales Order is confirmed, it should automatically create both a Delivery Order and a Manufacturing Order

Hope it helps

You need to configure the products to generate MO and DO from SO

Product's configurations:

Product Type: Storable

Under inventory tab, enable the routes MTO and Manufacture

Note: Generally, you cannot view "MTO" route in odoo. To view MTO, follow below steps:

Enable "Multi-Step Routes" in inventory > configuration > settings

Navigate to "Routes" in inventory > configuration

Filter "Archived"

You can find "MTO" there, unarchive it