Well, the co production order delivered material, and the material was sold, the activity update is post as a receipt from lower levels, but it never went to wip again. The material was sold, so the cost of sales is bigger that it supposed to be.
i'm thinking that i can´t manage the wip scenario for co production orders, also i think that i have to update the activity at the order level and not at material ledger so i have to change that customizing.