Authorization Error after having different credentials for WAS Admin and Web Apllication

I have a web application(XXX.war) in which it has role and other security constraint details. Application is insatlled and deployed successfully. I did the configuration based on the below link ,

https://docs.oracle.com/cd/E93130_01/admin_console/AC%20WebSphere%20installation/Content/Admin%20Console%20WebSphere%20Installation%20Guide/Webpshere_Security.htm

When I access the application(XXX.war) without logging into the WAS the application is working fine. But When I login in to the WAS Admn console and then accessing web application(XXX.war) It has thrown Error 403 Unauthorized Error