Hi @Sreecharan30,

Please look in to CPM installation guide for process to enable logging for chat engine.

https://community.pega.com/knowledgebase/documents/customer-process-manager-cpm-62-sp4-installation-guide

Quick overview of steps:

•  Edit the prlogging.xml file. This is located in the same folder as the prconfig.xml file (e.g. webapps\prweb\WEB-INF\classes on Tomcat; in the prresources.jar on WebSphere).  For your convenience, the XML snippets used below are provided in a file chat-logging.xml in the External Components folder in the CPM distribution.
• At the end of the appender blocks, add the appender block found in the file chat-logging.xml in the External Components folder in the CPM distribution
• At the end of the category blocks, add the category block found in the file chat-logging.xml.
• The debug level may be changed by setting the priorityvalue parameter in the category block (Error, Warning, Infor, Debug)
• You must restart your application servers for any changes to take effect. Consult the PegaCHAT Implementation Guide, included with the CPM Media, for additional configuration details.