diff --git a/process/Observation_lib/process.js b/process/Observation_lib/process.js
index 4f7986e3dc0e5c541b02f40c44d7026835c8dfd6..8d70794e10ef10610357918fa9fdf383a454cbc8 100644
--- a/process/Observation_lib/process.js
+++ b/process/Observation_lib/process.js
@@ -499,7 +499,7 @@ Observation._syncTempObservationAndObservation = function (pTempObserver, pObser
                 Observation._syncRecordsSpecificValues(
                     pTempObserver[Observation.RECORDS_SPECIFIC_VALUES()],
                     observer[Observation.RECORDS_SPECIFIC_VALUES()]
-                );
+                    );
             }
             else 
             {
@@ -762,7 +762,9 @@ Observation._createNotification = function (variables)
  */
 Observation.formatFieldValue = function (pRowData, pTypes, pField, pTimezone, pLocale)
 {
-    var typeObject = Utils.isObject(pTypes[pField]) ? pTypes[pField] : {type: pTypes[pField]};
+    var typeObject = Utils.isObject(pTypes[pField]) ? pTypes[pField] : {
+        type: pTypes[pField]
+    };
     switch (typeObject.type) 
     {
         case "DATE":
@@ -828,9 +830,17 @@ Observation.cancelAction = function ()
     .and("OBSERVATION.OBSERVER", observer);
 
     if (selectedUIDs.length)
-    {
+    {        
+        //determine child subscriptions 
+        var observation_ids = newSelect("OBSERVATION.OBSERVATIONID")
+        .from("OBSERVATION")
+        .where("OBSERVATION.OBJECT_ID",selectedUIDs, SqlBuilder.IN())
+        .arrayColumn();
+
         cond.and("OBSERVATION.OBJECT_ID", selectedUIDs, SqlBuilder.IN())
-        .deleteData(true, "OBSERVATION");
+        //add child subscriptions for deletion
+        cond.or("OBSERVATION.OBSERVATION_ID", observation_ids, SqlBuilder.IN())
+        .deleteData(true, "OBSERVATION");  
     } 
     else 
     {