I have a problem reserving products to move a sales order. 

Before, how my stock works:

four stock.picking is generated and one depends on the other:  receipt, save in stock, outbound stock and delivery to customer.

Each move sequence is generated for a sales order. The problem is that movements that do not belong to this sales order take the product that is already booked and ends up creating a stock problem when it comes to sorting and delivering the product. I can't use product variant and can't find the time in code or configuration to get it out.

Issue: A product that was reserved for one order move has been linked to another move from another sales order because it also has the product