2527018 - Cannot create an item with item category D in Manage Purchase Order

When creating a service item in Fiori app "Manage purchase order" or "Create purchase requisition" the item does not have item category "D" in the backend.

•  SAP Fiori
•  SAP S/4HANA 

Fiori, Manage PO, Create purchase order, Create PO, MMFIOSTD, MM_PO_CRES1, mmfiostd, F1643, MM_REQ_MAINTS1, D, Item category , KBA , MM-FIO-PUR-PO , Fiori UI for Purchase Orders , Problem