Atul,
Adding to KP's views.
Now that all the 12 fields are merged into PM , forget the 12 fields .
Now concentrate it as 1 long field in SAP PM.
Check whats the length of the Long text field. This field will be mapped to more than one info-objects in
BI Target side.It will not matter if its 400mn or 800mn the routine will take care of itself.First you try this in development environment which will give you confidence then you can move to PRD.
RESULT =SOURCE_PACKAGE-SAPPM FIELD + 0 (60)
RESULT =SOURCE_PACKAGE-SAPPM FIELD + 60 (120)
RESULT =SOURCE_PACKAGE-SAPPM FIELD +120(180)
and so on depending on the length of Long field in SAP PM.
Hope this clears your doubt.
Regards,
Venkatesh