diff --git a/addressbook/inc/class.addressbook_activesync.inc.php b/addressbook/inc/class.addressbook_activesync.inc.php
index 5a09c8182c..e04cfd6ad4 100644
--- a/addressbook/inc/class.addressbook_activesync.inc.php
+++ b/addressbook/inc/class.addressbook_activesync.inc.php
@@ -178,7 +178,7 @@ class addressbook_activesync implements activesync_plugin_write, activesync_plug
 				'parent'=>	'0',
 			);
 		}
-		debugLog(__METHOD__."() returning ".array2string($folderlist));
+		//debugLog(__METHOD__."() returning ".array2string($folderlist));
 		//error_log(__METHOD__."() returning ".array2string($folderlist));
 		return $folderlist;
 	}
@@ -587,6 +587,21 @@ error_log(__METHOD__."($folderid,$id) addressbook(".array2string($contact).") re
 		return false;
 	}
 
+	/**
+     	 * modify olflags (outlook style) flag of a message
+     	 *
+     	 * @param $folderid
+     	 * @param $id
+     	 * @param $flags
+     	 *
+     	 *
+     	 * @DESC The $flags parameter must contains the poommailflag Object
+     	 */
+	function ChangeMessageFlag($folderid, $id, $flags)
+	{
+		return false;
+	}
+
 	/**
 	 * Return a changes array
 	 *
diff --git a/calendar/inc/class.calendar_activesync.inc.php b/calendar/inc/class.calendar_activesync.inc.php
index d76c05ce29..3bcaf49373 100644
--- a/calendar/inc/class.calendar_activesync.inc.php
+++ b/calendar/inc/class.calendar_activesync.inc.php
@@ -345,7 +345,7 @@ class calendar_activesync implements activesync_plugin_write
 			}
 		}
 		debugLog(__METHOD__."('$folderid',$id,...) SUCESS saving event=".array2string($event).", id=$id");
-		error_log(__METHOD__."('$folderid',$id,".array2string($message).") SUCESS saving event=".array2string($event).", id=$id");
+		//error_log(__METHOD__."('$folderid',$id,".array2string($message).") SUCESS saving event=".array2string($event).", id=$id");
 		return $this->StatMessage($folderid, $id);
 	}
 
@@ -649,6 +649,21 @@ class calendar_activesync implements activesync_plugin_write
 		return false;
 	}
 
+	/**
+     	 * modify olflags (outlook style) flag of a message
+     	 *
+     	 * @param $folderid
+     	 * @param $id
+     	 * @param $flags
+     	 *
+     	 *
+     	 * @DESC The $flags parameter must contains the poommailflag Object
+     	 */
+	function ChangeMessageFlag($folderid, $id, $flags)
+	{
+		return false;
+	}
+
 	/**
 	 * Get specified item from specified folder.
 	 *