You have insufficient privileges for the current operation. Please contact your System Administrator

Issue: "You have insufficient privileges for the current operation. Please contact your System Administrator" ,the URL changed from https (SSL) to http (non-SSL) . 

Cause: The issue occurred after configuring the SSL on R12 applications, this caused in the WORKFLOW notification approvals, whenever they click the approve button in the notification the issue occurred,

-in the $CONTEXT_FILE we did not enable the flag for ssl terminated environments (ie. SSL is enabled on the load balancer/SSL accelerator): 
<sslterminator oa_var="s_enable_sslterminator">#</sslterminator> 


Solution:

As per the document for SSL : 

Enabling SSL or TLS in Oracle E-Business Suite Release 12 
( Doc ID 376700.1 ) --------->Section 3--->step 8->table "Changes when using an SSL Accelerator" 

1. Check the httpd.conf to confirm that ssl_terminator.conf is included as this is required for SSL Accelerators. 

grep ssl_terminator.conf $INST_TOP/ora/10.1.3/Apache/Apache/conf/httpd.conf 

2. Check that the "s_enable_sslterminator" autoconfig parameter is not disable with #. 

grep s_enable_sslterminator $INST_TOP/appl/admin/$CONTEXT_FILE 

If this shows # as value, it must be removed and Autoconfig must be run to update the httpd.conf to include the ssl_terminator.conf. 

3. start the applications so the changes to the httpd.conf is seen by the web server.