We are looking into possbilities and constrains for S4/HANA. One of many areas are UI solutions in our current ECC. Some of them are pretty "old" and based on BSP. My question is could we still use these after a migration to ->S/4-HANA<- ? Are there any actions required to use those? I mean we are using the SAP Portal today but could these be adapted to the fiori launchpad?