Errors in manual upload in signavio process intelligence SQL Script

Hi,

while i'm working with Manual upload in signavio process intelligence, getting data type errors like

'=' cannot be applied to varchar, bigint,

Unexpected parameters (integer, integer, integer) for function concat. Expected: concat(char(x), char(y)) , concat(array(E), E) E, concat(E, array(E)) E, concat(array(E)) E, concat(varchar) , concat(varbinary)

I'm not getting these errors when I work with SAP-ECC or SAP-HANA data sources.

How do we know what data types to be given? for what tables? and for what columns?

Thanks in advance.