Comment 2 for bug 1350622

The cost amount appears as Zero in the sale margin report because the old invoice lines are not related to the stock moves that created them. With this module the invoice lines get related to their source stock moves. Thus the new invoices created will show the cost amount field value correctly while the old ones will show 0.00

When i create this bug, i request take the value of "cost ammount" from product.product model standard_price field, in on reply of you you are telling me:

The cost amount appears as Zero in the sale margin report because the old invoice lines are not related to the stock moves that created them

Its exactly the issue im asking to solve, to the view be calculated correctly in all the lines if you take the "cost ammount" from product.product model standard_price field this problem be solved.

Thanks!