Stock transfer process (for plants) MTO Accounting classification M

Dear all,

I am studying a transfer process for plants with purchase order using the accounting classification M (not collecting costs for Sales order) , so the step of post good issue results in the error M7146 - EKPO - SOBKZ = E; EKPO - UMSOK = _ ; EKPO - KZBWS < > _ EKPO - KZVBR < > E ( Note 305 582 ) not supported (check your entry) . Using the accounting classification “M” not generate this error. Can you tell me if it is correct not collect costs in the sales order?

Thanks