Default G/L Account for Cost Center Purchasing

Lin： https://answers.sap.com/questions/8913100/default-gl-account-in-po-for-non-valuatednon-stock.html

For free text POs, the system gives priority to valuation class maintained in OMQW (IMG>MM>Purchasing>Material master>Entry Aids for Items without a Material Master.).

And, for material masters which do not have accounting view (like non-valuated materials) can be taken care of by a blank entry for valuation class in OBYC.