S/4HANA 2020 FPS 02 FIORI APP - MM- Creating Purchase Orders with Source Determination

[zuckar]

Hello All,

my customer wants to create several purchase orders by selecting a supplier from a source list. He doesn't create purchase requisition beforehand, just purchase orders straight away. He only uses the Fiori application, so ME25 (GUI transaction) is not an option. He has the S/4HANA on - premis 2020 version of FPS02 installed, so the FIORI application ‘Create purchase order - with source determination’ is ‘obsolete’. Is there any equivalent to the ‘Create Purchase Order - With Source Determination’ application for the installed version of S/4HANA? When creating a purchase order in another FIORI application (e.g. create purchase order -advanced), is it possible to assign a supplier from a previously created source list?
I would appreciate any guidance, as I have looked for a solution in many sources, but have not found any satisfactory one.

Regards,