Hello Rémy Lannemajo

For such business flow, we can do transfer between two companies as below.

• Warehouse A will be default resupply warehouse for warehouse B, so need to configure default resupply warehouse in warehouse B.

• Now lets assume, you got 100 orders in Company B, i.e. delivered from Warehouse B. As warehouse B is a virtual warehouse, all your delivery orders will be in waiting availability.

• Now we can develop such module which will check all waitining availability deliveries in warehose B & create Inter Company Transfer all together. That means against 100 orders only one Inter company transfer will be created.

• In Company B, purchase order will be generated for all items & In Company A Sales order will be generated, which can be processed automatically, i.e. users not need to do anything manually.

By this way, all stock will be there in Warehouse B now & can be reserved in all those deliveries & deliver to customer.

We do have such solution published on Odoo App Store Inter Company Transaction in Odoo based on multiple waiting deliveries & process automatically. Click here to know more in details.