Cost update after sales update

Hi,

We used an item in sales order which had zero cost in p4105. We had missed to update cost with correct value.

But now, item used in sales order has been shipped and sales updated with zero cost.

We have corrected cost in p4105.

Please advise how can we update cost in already sales updated sales orders.

We have issues in COGS ac accounts. Accounts have been written with zero value due to zero cost. How can we correct this.

Is there a only option to delete entries from F0911, F03b11 and update cost in F4211 and then rerun sales update.