Index: lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/monitoringApplicationContext.xml
===================================================================
diff -u -r3438d5b8ee54bba2e782f62d77db620df3e0faef -r5176a39390628de74ff3c3ba5bab716164dbdb42
--- lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/monitoringApplicationContext.xml	(.../monitoringApplicationContext.xml)	(revision 3438d5b8ee54bba2e782f62d77db620df3e0faef)
+++ lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/monitoringApplicationContext.xml	(.../monitoringApplicationContext.xml)	(revision 5176a39390628de74ff3c3ba5bab716164dbdb42)
@@ -43,6 +43,7 @@
 		<property name="learningDesignDAO"><ref bean="learningDesignDAO"/></property>
 		<property name="lamsCoreToolService"><ref bean="lamsCoreToolService"/></property>			
 		<property name="learnerService"><ref bean="learnerService"/></property>			
+		<property name="learningDesignService"><ref bean="learningDesignService"/></property>			
 		<property name="lessonService"><ref bean="lessonService"/></property>			
 		<property name="userManagementService"><ref bean="userManagementService"/></property>			
 		<property name="scheduler"><ref bean="scheduler"/></property>
Index: lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/IMonitoringService.java
===================================================================
diff -u -rabe8b6d5222e4efc0e5bb332066d481f50d38e8c -r5176a39390628de74ff3c3ba5bab716164dbdb42
--- lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/IMonitoringService.java	(.../IMonitoringService.java)	(revision abe8b6d5222e4efc0e5bb332066d481f50d38e8c)
+++ lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/IMonitoringService.java	(.../IMonitoringService.java)	(revision 5176a39390628de74ff3c3ba5bab716164dbdb42)
@@ -33,6 +33,7 @@
 import org.lamsfoundation.lams.learningdesign.GroupingActivity;
 import org.lamsfoundation.lams.learningdesign.exception.LearningDesignProcessorException;
 import org.lamsfoundation.lams.lesson.Lesson;
+import org.lamsfoundation.lams.lesson.service.LessonServiceException;
 import org.lamsfoundation.lams.tool.exception.LamsToolServiceException;
 import org.lamsfoundation.lams.usermanagement.Organisation;
 import org.lamsfoundation.lams.usermanagement.exception.UserAccessDeniedException;
@@ -389,7 +390,7 @@
      * @param groupingActivity
      * @param groups list of group information. 
      */
-    public void performChosenGrouping(GroupingActivity groupingActivity, List groups);
+    public void performChosenGrouping(GroupingActivity groupingActivity, List groups) throws LessonServiceException;
     
 	//---------------------------------------------------------------------
 	// Preview Methods
Index: lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/MonitoringService.java
===================================================================
diff -u -r0ea73ee29a582fe2f120a3d5c87fe50b89cfb57d -r5176a39390628de74ff3c3ba5bab716164dbdb42
--- lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/MonitoringService.java	(.../MonitoringService.java)	(revision 0ea73ee29a582fe2f120a3d5c87fe50b89cfb57d)
+++ lams_monitoring/src/java/org/lamsfoundation/lams/monitoring/service/MonitoringService.java	(.../MonitoringService.java)	(revision 5176a39390628de74ff3c3ba5bab716164dbdb42)
@@ -56,13 +56,15 @@
 import org.lamsfoundation.lams.learningdesign.dao.ITransitionDAO;
 import org.lamsfoundation.lams.learningdesign.dto.ProgressActivityDTO;
 import org.lamsfoundation.lams.learningdesign.exception.LearningDesignProcessorException;
+import org.lamsfoundation.lams.learningdesign.service.ILearningDesignService;
 import org.lamsfoundation.lams.lesson.LearnerProgress;
 import org.lamsfoundation.lams.lesson.Lesson;
 import org.lamsfoundation.lams.lesson.LessonClass;
 import org.lamsfoundation.lams.lesson.dao.ILessonClassDAO;
 import org.lamsfoundation.lams.lesson.dao.ILessonDAO;
 import org.lamsfoundation.lams.lesson.dto.LessonDetailsDTO;
 import org.lamsfoundation.lams.lesson.service.ILessonService;
+import org.lamsfoundation.lams.lesson.service.LessonServiceException;
 import org.lamsfoundation.lams.monitoring.MonitoringConstants;
 import org.lamsfoundation.lams.tool.ToolSession;
 import org.lamsfoundation.lams.tool.exception.DataMissingException;
@@ -133,7 +135,8 @@
     private Scheduler scheduler;
     private ApplicationContext applicationContext;
     private MessageService messageService;
-
+    private ILearningDesignService learningDesignService;
+    
 	//---------------------------------------------------------------------
     // Inversion of Control Methods - Method injection
     //---------------------------------------------------------------------
@@ -256,11 +259,15 @@
         this.scheduler = scheduler;
     }
     
+    public void setLearningDesignService(ILearningDesignService learningDesignService) {
+		this.learningDesignService = learningDesignService;
+	}
+
     //---------------------------------------------------------------------
     // Service Methods
     //---------------------------------------------------------------------
 
-    /** Checks whether the user is a staff member for the lesson or the creator of the lesson. 
+	/** Checks whether the user is a staff member for the lesson or the creator of the lesson. 
      * If not, throws a UserAccessDeniedException exception */
     private void checkOwnerOrStaffMember(Integer userId, Lesson lesson, String actionDescription) {
     	User user = userManagementService.getUserById(userId);
@@ -774,9 +781,11 @@
             		//group does not exist
             		if(grouping.isRandomGrouping()){
             			//for random grouping, create then complete it. Continue 
-            			learnerService.performGrouping(lessonId, groupActivity);
-//            			grouping = groupActivity.getCreateGrouping();
-//            			myGroup = grouping.getGroupBy(learner);
+            			try {
+							lessonService.performGrouping(lessonId, groupActivity,learner);
+						} catch (LessonServiceException e) {
+		            		stopReason = "Force complete stop at non-grouped grouping activity [" + groupActivity + "] due to exception "+e.getMessage();
+						}
             			learnerService.completeActivity(learner.getUserId(),activity,lessonId);
             			log.debug("Grouping activity [" + activity.getActivityId() + "] is completed.");
             		}else{
@@ -1136,9 +1145,10 @@
 	    
 	}
 	 /**
-     * @see org.lamsfoundation.lams.monitoring.service.IMonitoringService#performChosenGrouping(GroupingActivity,java.util.List)
+     * @throws LessonServiceException 
+	 * @see org.lamsfoundation.lams.monitoring.service.IMonitoringService#performChosenGrouping(GroupingActivity,java.util.List)
      */
-	public void performChosenGrouping(GroupingActivity groupingActivity, List groups) {
+	public void performChosenGrouping(GroupingActivity groupingActivity, List groups) throws LessonServiceException {
         Grouping grouping = groupingActivity.getCreateGrouping();
         
         if(!grouping.isChosenGrouping()){
@@ -1174,7 +1184,7 @@
 	        	
 	        	}
 	        	log.debug("Performing grouping for " + groupName + "...");
-	        	grouping.doGrouping(groupName,learners);
+	        	lessonService.performChosenGrouping(groupingActivity,learners);
 	        	log.debug("Finish grouping for " + groupName);
 	        }