India GST Tax Category application without Item Code (Directly on Item Category based Purchases)

Hi Team,

Would like to know if in iProcurement we raise Purchase Requisition on the basis of Item Category and enter free text description.

Once approved, the same PR is converted to a PO. The question is since there is no item code (hence no item classification setup to indicate Recoverable flag and Item Classification)

(a) Will the procurement team be able to apply the GST tax (Tax Category) while PO creation (India Tax Details form)

(b) Will the AP team be able to apply the GST taxes once invoice is created after PO Match

Thanks, any pointers shall be of help