Hi Rajesh,
License is one of the reasons. We are licensed only to use BW on HANA, so in this case we can't load data directly to HANA tables.
1) Same case with smart data access, We can't use HANA studio to create create smart data access to create view on top of it . From a BW perceptive we have to use open ODS view to consume smart data access.
2) If you want to use SLT for replication, the only option we have is Operational Data Provider (ODP) or Web service as data source.
To get BW on HANA and HANA live you need full HANA enterprise edition, which is expensive.
Thanks,
Shakthi Raj Natarajan.