Advanced Customization > Business Logic Customization > Data Exchange using Standards in Windchill > STEP Data Exchange using EXPRESS > STEP Foundation > Configuring Metadata Mapping > Logging
  
Logging
You can use the following log4j flags to enable the logging in the Method Server.
• log4j.logger.wt.ixb.publicforapps.extendedmapping =DEBUG or TRACE
• log4j.logger.wt.ixb.publicforapps.extendedmapping =DEBUG or TRACE
The DEBUG level would identify the exact mapping rule that has come into effect while the TRACE level would provide you additional details on what different candidate mapping rules were evaluated.