Thank you Jordi Ballester for your anwser.

I watched Aaron presentation, and took a look at your repositories. I'm impressed with your work regarding RMA use cases.

If I may ask, in the video ( https://www.youtube.com/watch?v=Qf25e1fvK54&feature=youtu.be&t=1185 ) I read : "Force repair location : RMA External Location". Is this "RMA External Location" attached to the main warhouse ? which type of location is it ?

Ok thanks. For information after thorough testing : what is important for AVCO computation in our use case in V11, is whether or not the repair location is attached to the warehouse. Company of the location, and owner of the stock have no impact on AVCO computation : Odoo still thinks that the repaired product is owned by the company, as long as the location is attached to the company warehouse.

By the way, I observe that when an owner is set for a product being repaired, the Odoo repair module creates negative quants for the used parts and for the owner of the repaired product, instead of using existing quants on hand in the default stock location.

As a result, the user sees a correct stock on hand value on the product form, but the inventory report shows that consumed parts are still on hand.

Thank you Pinakin Nayi for your answer. I'm giving it a try.

Thank you Paresh for your answer.

I was not sure whether "Consignement" technique was a good choice for a repair use case or not.

On my mind it was more a sales technique.

So I'm going to test our use case in details, to check if everything is OK with using a child location our main wharehouse, and "consignment" (from the inventory and invoicing points of view).

So after more testing : the avco computation seems to ignore the owner of the stock in v11 and v12.

In v11, the inventory valuation ignores the owner in the quantity computation, in v12 quantity looks good.

As a conclusion I think consignment is not the solution in our use case, in v11 and v12. I've not tested v13 yet.