/mcpIf the PIN Synchronization is enabled and the end user changes the pin, then pin is updated in Cisco Unified Communications Manager. This happens only when the pin update is successful in at least one of the configured Unity Connection Application servers. For PIN Synchronization to take effect, administrators must force the users to change their PIN after successfully enabling the feature. Note Before you begin This procedure assumes that you already have your application server connection to Cisco Unity Connection setup. If not, for more information on how to add a new application server, see the Related Topics section. To enable PIN Synchronization feature, you need to first upload a valid certificate for the Cisco Unity Server connection from the Cisco Unified OS Administration page to the Cisco Unified Communications Manager tomcat-trust. For more information on how to upload the certificate, see the “Manage Security Certificates” chapter in the Administration Guide for Cisco Unified Communications Manager at http://www.cisco.com/ c/en/us/support/unified-communications/unified-communications-manager-callmanager/ products-maintenance-guides-list.html. The user ID in the Cisco Unity Connection Server must match the user ID in Cisco Unified Communications Manager. Procedure Step 1 From Cisco Unified CM Administration, choose System > Application Servers. Step 2 Select the application server that you set up for Cisco Unity Connection. Step 3 Check the Enable End User PIN Synchronization check box. Step 4 Click Save. Related Topics Configure Application Servers Monitor Authentication Activity The system shows the most current authentication results, such as last hack attempt time, and counts for failed logon attempts. The system generates log file entries for the following credential policy events: • Authentication success • Authentication failure (bad password or unknown) • Authentication failure because of • Administrative lock • Hack lock (failed logon lockouts) Security Guide for Cisco Unified Communications Manager, Release 15 and SUs 231 User Security Monitor Authentication Activity