diff --git a/distro/changelog.xml b/distro/changelog.xml
index d8e0f69..5d9e105 100644
--- a/distro/changelog.xml
+++ b/distro/changelog.xml
@@ -1,4 +1,9 @@
 <ReleaseNotes>
+	<Changeset component="org.gcube.portal.social-networking-library.1-15-0"
+		date="2017-01-25">
+		<Change>Added support for job completion notifications</Change>
+		<Change>Improved exceptions handling</Change>		
+	</Changeset>
 	<Changeset component="org.gcube.portal.social-networking-library.1-14-0"
 		date="2016-09-29">
 		<Change>upgrade astyanax dependency to 2.0.2</Change>
diff --git a/pom.xml b/pom.xml
index 448d068..fd7f2d1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 
 	<groupId>org.gcube.portal</groupId>
 	<artifactId>social-networking-library</artifactId>
-	<version>1.14.0-SNAPSHOT</version>
+	<version>1.15.0-SNAPSHOT</version>
 	<name>gCube Social Networking Library</name>
 	<description>
 		The gCube Social Networking Library is the 'bridge' between your gCube Applications and the social networking facilities. 
diff --git a/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java b/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
index a77b452..1892db9 100644
--- a/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
+++ b/src/main/java/org/gcube/portal/databook/server/DBCassandraAstyanaxImpl.java
@@ -442,7 +442,7 @@ public final class DBCassandraAstyanaxImpl implements DatabookStore {
 		try {
 			toCheck = readFeed(feedId);
 			if (toCheck == null)
-				throw new FeedIDNotFoundException("Could not find Feed with id " + feedId);
+				throw new FeedIDNotFoundException("Could not find Feed with id " + feedId, feedId);
 		} catch (Exception e) {
 			e.printStackTrace();
 			return false;
@@ -470,7 +470,7 @@ public final class DBCassandraAstyanaxImpl implements DatabookStore {
 
 			ColumnList<String> columns = result.getResult();
 			if (columns.size() == 0) {
-				throw new FeedIDNotFoundException("The requested feedid: " + feedid + " is not existing");
+				throw new FeedIDNotFoundException("The requested feedid: " + feedid + " is not existing", feedid);
 			}
 
 			toReturn.setKey(feedid);
@@ -1344,7 +1344,7 @@ public final class DBCassandraAstyanaxImpl implements DatabookStore {
 		try {
 			toComment = readFeed(feedId);
 			if (toComment == null)
-				throw new FeedIDNotFoundException("Could not find Feed with id " + feedId + " to associate this comment");
+				throw new FeedIDNotFoundException("Could not find Feed with id " + feedId + " to associate this comment", feedId);
 		} catch (Exception e) {
 			e.printStackTrace();
 			return false;
@@ -1615,7 +1615,7 @@ public final class DBCassandraAstyanaxImpl implements DatabookStore {
 		try {
 			toLike = readFeed(feedId);
 			if (toLike == null)
-				throw new FeedIDNotFoundException("Could not find Feed with id " + feedId + " to associate this like");
+				throw new FeedIDNotFoundException("Could not find Feed with id " + feedId + " to associate this like", feedId);
 		} catch (Exception e) {
 			e.printStackTrace();
 			return false;
@@ -2160,7 +2160,7 @@ public final class DBCassandraAstyanaxImpl implements DatabookStore {
 		try {
 			toCheck = readFeed(feedId);
 			if (toCheck == null)
-				throw new FeedIDNotFoundException("Could not find Feed with id " + feedId);
+				throw new FeedIDNotFoundException("Could not find Feed with id " + feedId, feedId);
 		} catch (Exception e) {
 			e.printStackTrace();
 			return null;
diff --git a/src/main/java/org/gcube/portal/databook/shared/ex/FeedIDNotFoundException.java b/src/main/java/org/gcube/portal/databook/shared/ex/FeedIDNotFoundException.java
index 8ceaac7..d298574 100644
--- a/src/main/java/org/gcube/portal/databook/shared/ex/FeedIDNotFoundException.java
+++ b/src/main/java/org/gcube/portal/databook/shared/ex/FeedIDNotFoundException.java
@@ -1,8 +1,13 @@
 package org.gcube.portal.databook.shared.ex;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
 @SuppressWarnings("serial")
 public class FeedIDNotFoundException extends Exception {
-	public FeedIDNotFoundException(String message) {
-		super(message);
+	private static final Logger _log = LoggerFactory.getLogger(FeedIDNotFoundException.class);
+	public FeedIDNotFoundException(String message, String postId) {
+		_log.info("The Post having id: " + postId + " is not present in the database: " + message);
 	}
 }
\ No newline at end of file