OAM 11G R2 PS2: Issue during Google Apps Integration using Identity Federation

Error: 

When you try google URL after configuring SSO you will get system error instead of Login page.

[2014-09-29T18:06:17.373-04:00] [oam_server1] [WARNING] [OAM-02073] [oracle.oam.controller] [tid: [ACTIVE].ExecuteThread: '4' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <anonymous>] [ecid: c30ad4bc9da0dbee:-1b2a6850:148b3c4478d:-8000-000000000003d3c6,0] [APP: oam_server#11.1.2.0.0] Error while checking if the resource is protected or not.
[2014-09-29T18:06:17.375-04:00] [oam_server1] [WARNING] [] [oracle.oam.binding] [tid: [ACTIVE].ExecuteThread: '4' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <anonymous>] [ecid: c30ad4bc9da0dbee:-1b2a6850:148b3c4478d:-8000-000000000003d3c6,0] [APP: oam_server#11.1.2.0.0] OAM-02073

System error. Please re-try your action. If you continue to get this error, please contact the Administrator.

Cause: 

Basically while doing federation OAM looks for IAMSuiteAgent on port 80 and tries to apply policies that are created for IAMSuiteAgent on Google apps or any other federated application integration. 

This issue occurs only when IAMSuiteAgent was deleted in OAM Environment for some other reason. 

Solution: 

Create 10g Agent with the name IAMSuiteAgent

Modify Host Identifier and add port 80 because OAM check for port 80

Verify if policies for IAMSuiteAgent were created or not. 

Try hitting google apps URL: example mail.google.com/a/iamidm.com and you should get login page.