Displaying Traces 
When tracing is activated, the system saves all the data of the SOAP runtime components and all the information about the messages involved for further tracking. You can use the tracing information to do the following:
Review the performance, functional, and payload trace records separately.
Search and display traces for Web service provider and consumer calls.
Perform detailed analysis of Web service issues that have been discovered with the help of the error log and the monitors.
Prerequisites
You have configured tracing. More information: Configuring Tracing
Your user is assigned one of the following roles:
SAP_BC_WEBSERIVCE_ADMIN_BIZ allows you only to view the tracing information.
SAP_BC_WEBSERIVCE_ADMIN_TEC allows you to view and manage the tracing information.
For more information, see Authorizations.
Procedure
Searching trace records
Start transaction SRT_UTIL.
Choose
Tools 
Search Traces 
and select a trace function.Choose the search criteria and enter the search data.
If you want to perform a search for all users, enter the asterisk (*) wildcard character in User Name.
Displaying individual trace records
Start transaction SRT_UTIL.
Choose
(Add User or terminal or request URI) and specify whose tracing records you want to view.You need to do this only if there is no corresponding entry in the Users & Terminals & Request URI list.
To display the tracing records for a user, proceed as follows:
Double-click the corresponding entry in the Users & Terminals & Request URI list.
Choose the Performance Trace, Functional Trace, or Payload Trace tab.
Result
The system displays an overview of the trace records that are found. The amount of trace information displayed depends on the selected trace level. You can examine all details of a particular trace record to obtain information about how well a Web service is performing, and what might be the reason for an issue.
More information:
More Information
Transaction SOAMANAGER also provides error and trace logs for the Web service runtime. The tools provided by this transaction are based on a different logging and tracing concept. They are configured, implemented, and viewed independently of the Web service support utilities described here. More information: Displaying Logs and Traces
The Web service support utilities can be integrated in transaction SOAMANAGER in future releases.