Is it possible to trigger a route from an inbound delivery order.

The problem we are trying to solve is that when customers returns us products, we need to check the products before we can put them back into the warehouse. 

So i created a warehouse location 'Stock/Return'  and then two stock sub-location 'stock/return/validate' and 'stock/return/defect'. 

When i validate the Inbound delivery, i want to create a route to push the products from 'stock/return' to 'stock/return/validate' and then a operations type to transfer later the products from 'stock/return/validate' to 'stock'. 

The same for the defect products but to another location.

But it does not work. I wonder if Routes are working from Delivery Transfers or only from Sales Orders ? 

P.s. I set the routes for the products ;)