Connecting to oracle Db using SSI

Hi All,
I am trying to connect to the oracle database using Oracle provider for oledb.

In the tnanames.ora file, we have a connection details as below;

TNSName123= (DESCRIPTION=(ADDRESS=(COMMUNITY = testdomain.com)(PROTOCOL = TCP)(Host=testing.com)(Port = 1526))(CONNECT_DATA=(SID = TNSName123)(GLOBAL_NAME = abe.com)))

When using TOAD, I am able to connect to the oracle database using the tnsname,  username and password but when creating the connection manager in SSIS package, I am getting the error