Hai friends this kiran
when i am doing the process for third party sales i got the error at billing level.
i rasied the sales order with item category TAS and got the requisetion number. with that reference PR i did PO and done the migo also. when i am doing the invoice with reference to order system is shopwing error message.
I configured and checked at item level which is TAS order related billing with B and F also.
plz give some lights on that