Make sure patch for have been applied.
Create The following Validation Rule (Filter batch/lot costing level for standard costing method):
(AD_Ref_List.Value <> 'B' OR '@CostingMethod:-@' <> 'S').
Assigned the validation rule to M_Product_Category_Acct.CostingLevel.
Using the grid view at bottom, edit the accounting record for any product category. Note that the costing level list doesn't auto refresh after you have selected standard costing method.