Click on Help button returning "TOPIC NOT FOUND"

 Hi Folks,

Recently one of our customers reported in the 12.1.3 EBS environment when he clicks on the help button doesn't show anything. It shows "TOPIC NOT FOUND". 

Fix

Though you have TLS enable, Applications Help Web Base URL should be as follows. 

http://<physicalhostname>.<domainname>:port(httpport)/OA_HTML/

Thanks.