SLT Replication - Datatypes NVARCHAR converted in HANA

Hello Experts,

I have lots of questions how to achieve the Datatypes to be converted when we replicate tables from SLT system to HANA.

I got to know from one of the thread we can achieved it as a global setting.

The default type mapping can be redefined for each configuration. The individual type mapping can be defined in table IUUC_REPL_TYPMAP and will affect all tables of the corresponding configuration. For those data types where no individual type mapping is defined, the default mapping will be used.

My question are as below

• What are the Pre requites steps to be followed for this replication
• Is this applicable for already replicated tables as well
• If it affected to all tables, How are we going to ensure for already replicated tables which holds the data. Will it converts the DATATYPE's which is already having the data ?
• Should we do this at the time of initial replication ?

Your Inputs are highly appreciated.

Thanks,

HA