Hi Arun,
EPM Add-in (BPC 10 client) run packages with 64 bit runtime by default.
For SQL Server Agent job, it also run the package with 64 bit runtime by default, even though the SSIS package is built by 32 bit runtime. Lucky for SQL Server Agent job, there is the option that you have mentionned “Run64BitRuntime=False”, which will run the package with 32 bit runtime.
But for EPM Add-in, there is no option like this.
As a workaround, you may run this package on 32 bit environment if you want to run it from EPM Add-in Data Manager.
Hope this will help
Best Regards
Yasser