http://scn.sap.com/thread/3230008
See the above link. I to modify some parameters in Xcellerator.cfg which is by default located in C:\Program Files (x86)\SAP\SAP Business One Integration\B1iServer\Tomcat\webapps\B1iXcellerator
.level= WARNING
com.sap.b1i.bizprocessor.level = CONFIG
com.sap.b1i.coordservice.level = CONFIG
com.sap.b1i.utilities.level = CONFIG
com.sap.b1i.dblayer.level = CONFIG
com.sap.b1i.xcellerator.level = CONFIG