Index: lams_build/lib/lams/lams.jar
===================================================================
diff -u -re08b873af178aec14f4a58df17f0f34a47931069 -r2d4d19ec67fe859af0cd7a0e55d1c45e34fac988
Binary files differ
Index: lams_central/src/java/org/lamsfoundation/lams/web/OrganisationGroupAction.java
===================================================================
diff -u -r2a453fc72f50cf05bc324019cbe11322aebc91e2 -r2d4d19ec67fe859af0cd7a0e55d1c45e34fac988
--- lams_central/src/java/org/lamsfoundation/lams/web/OrganisationGroupAction.java	(.../OrganisationGroupAction.java)	(revision 2a453fc72f50cf05bc324019cbe11322aebc91e2)
+++ lams_central/src/java/org/lamsfoundation/lams/web/OrganisationGroupAction.java	(.../OrganisationGroupAction.java)	(revision 2d4d19ec67fe859af0cd7a0e55d1c45e34fac988)
@@ -191,7 +191,7 @@
 	request.setAttribute(AttributeNames.PARAM_ORGANISATION_ID, organisationId);
 
 	// if this is a chosen group and lesson is created using integrations - show groups received from LMS instead of actual LAMS ones
-	if (lessonId != null && getIntegrationService().isLessonCreatedUsingIntegrations(lessonId)) {
+	if (lessonId != null && getIntegrationService().isIntegratedServerGroupFetchingAvailable(lessonId)) {
 	    List<ExtGroupDTO> extGroups = getIntegrationService().getExtGroups(lessonId, null);
 	    request.setAttribute("extGroups", extGroups);
 	    // TODO ? show only with user number >0
Index: lams_common/src/java/org/lamsfoundation/lams/integration/service/IIntegrationService.java
===================================================================
diff -u -rd27ed028b0e16c263776418b7bce22099fed4eed -r2d4d19ec67fe859af0cd7a0e55d1c45e34fac988
--- lams_common/src/java/org/lamsfoundation/lams/integration/service/IIntegrationService.java	(.../IIntegrationService.java)	(revision d27ed028b0e16c263776418b7bce22099fed4eed)
+++ lams_common/src/java/org/lamsfoundation/lams/integration/service/IIntegrationService.java	(.../IIntegrationService.java)	(revision 2d4d19ec67fe859af0cd7a0e55d1c45e34fac988)
@@ -150,12 +150,14 @@
     String getLessonFinishCallbackUrl(User user, Lesson lesson) throws UnsupportedEncodingException;
     
     /**
-     * Checks whether lesson was created using integrations.
+     * Checks whether lesson was created using integrations and whether according integrated server has ExtGroupsUrl
+     * property set up.
      * 
      * @param lessonId
-     * @return true in case lesson was created using integrations, false otherwise
+     * @return true in case lesson was created using integrations and according integrated server has ExtGroupsUrl
+     *         property set up, false otherwise
      */
-    boolean isLessonCreatedUsingIntegrations(Long lessonId);
+    boolean isIntegratedServerGroupFetchingAvailable(Long lessonId);
     
     List<ExtGroupDTO> getExtGroups(Long lessonId, String[] extGroupIds) throws Exception;
 }
Index: lams_common/src/java/org/lamsfoundation/lams/integration/service/IntegrationService.java
===================================================================
diff -u -rd27ed028b0e16c263776418b7bce22099fed4eed -r2d4d19ec67fe859af0cd7a0e55d1c45e34fac988
--- lams_common/src/java/org/lamsfoundation/lams/integration/service/IntegrationService.java	(.../IntegrationService.java)	(revision d27ed028b0e16c263776418b7bce22099fed4eed)
+++ lams_common/src/java/org/lamsfoundation/lams/integration/service/IntegrationService.java	(.../IntegrationService.java)	(revision 2d4d19ec67fe859af0cd7a0e55d1c45e34fac988)
@@ -578,15 +578,17 @@
     }
     
     @Override
-    public boolean isLessonCreatedUsingIntegrations(Long lessonId) {
+    public boolean isIntegratedServerGroupFetchingAvailable(Long lessonId) {
 
-	boolean isLessonCreatedByIntegratedServer = false;
+	boolean isIntegratedServerGroupFetchingAvailable = false;
 	if (lessonId != null) {
 	    ExtServerLessonMap extServerLesson = getExtServerLessonMap(lessonId);
-	    isLessonCreatedByIntegratedServer = extServerLesson != null;
+	    
+	    isIntegratedServerGroupFetchingAvailable = (extServerLesson != null)
+		    && StringUtils.isNotBlank(extServerLesson.getExtServer().getExtGroupsUrl());	    
 	}
 
-	return isLessonCreatedByIntegratedServer;
+	return isIntegratedServerGroupFetchingAvailable;
     }
     
     @Override