3257400 - Custom document type not available in the Manage Purchase Orders app

A custom document type is maintained in customizing: SPRO -> Materials Management -> Purchasing -> Purchase Order -> Define Document Types.
When creating a PO in the Manage Purchase Orders app (F0842A), the maintained document type cannot be selected in the "Purchasing Doc Type" dropdown.

• SAP Fiori
• SAP S/4HANA 2020
• SAP S/4HANA 2021
• SAP S/4HANA 2022

F0842A, GET_PO_TYPES_COMPATIBLE_TO_NB, IS_PO_TYPE_SUPPTD_IN_MANAGE_PO, ls_t161_nb, t161, rt_po_types, custom, document, type. Purchasing Doc Type , KBA , MM-FIO-PUR-PO , Fiori UI for Purchase Orders , Problem