ERP 6.0 EHP7 to S/4 HANA1605 System conversion and Fiori upgrade from 1.0 to 2.0

Hi All,

I would like to understand during system conversion from ERP 6.0 EHP 7 to S/4 HANA1605 Finance does the existing ERP system and components ( eg HCM) are expected to remain the same ?

There are some existing standard Fiori approval apps used for travel request approval and requisition approval.Will the migration to S/4 hana 1605 have any impact on these apps?

The current Fiori version is Fiori 1.0 and planning to ugrade to 2.0.

Thanks,

Regards,

Kothai T