What's the business need, guessing audit requirement?
I don't believe CA PPM stores the XOG request made, but we could look at the logs for connections.
There are 3rd party products (or custom solutions) which keep the XOG request and associated meta data (who, what, when). An example being the XOG query bridge from itroi.
I suspect that if you enable a class logger on com.niku.xog.client and set it to DEBUG, you would get the payload in the log file.
The log file information will be growing more if you enable debug mode and it may be affected application performance.
What is clarity version.
1. Run Tomcat access log improve/analyze Job. (The Log information will be stored log related table. Table start with LOG_)
You can get SOAP response time from Log_summary table
SELECT HOST_NAME, LOG_DATE, LOG_HOUR, AVG_SOAP_RESP, MAX_SOAP_RESP FROM LOG_SUMMARY
By enabling debug logging on just the class you only get debug logs for that class. Depending on the number of debug log statements in the com.niku.xog.client class the performance impact might not be that great.
You can check this table also.
SELECT * FROM LOG_DETAILS WHERE UPPER(URL_SHORT) LIKE '%SOAP%'