diff --git a/GAE/src/org/akvo/flow/rest/SurveyAssignmentRestService.java b/GAE/src/org/akvo/flow/rest/SurveyAssignmentRestService.java
index a37726564e..0b0e3be572 100644
--- a/GAE/src/org/akvo/flow/rest/SurveyAssignmentRestService.java
+++ b/GAE/src/org/akvo/flow/rest/SurveyAssignmentRestService.java
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2012,2017,2019 Stichting Akvo (Akvo Foundation)
+ *  Copyright (C) 2012,2017,2019,2020 Stichting Akvo (Akvo Foundation)
  *
  *  This file is part of Akvo FLOW.
  *
@@ -21,6 +21,7 @@
 import java.util.List;
 import java.util.Map;
 
+import org.akvo.flow.dao.DataPointAssignmentDao;
 import org.akvo.flow.dao.SurveyAssignmentDao;
 import org.akvo.flow.domain.persistent.DataPointAssignment;
 import org.akvo.flow.domain.persistent.SurveyAssignment;
@@ -59,6 +60,8 @@ public class SurveyAssignmentRestService {
 
     private DeviceSurveyJobQueueDAO deviceSurveyJobQueueDAO = new DeviceSurveyJobQueueDAO();
 
+    private DataPointAssignmentDao dataPointAssignmentDao = new DataPointAssignmentDao();
+
     @RequestMapping(method = RequestMethod.GET, value = "")
     @ResponseBody
     public Map<String, List<SurveyAssignmentDto>> listAll() {
@@ -99,6 +102,7 @@ public Map<String, RestStatusDto> deleteById(@PathVariable("id")
         statusDto.setStatus("failed");
         if (sa != null) {
             deleteExistingDeviceSurveyJobQueueItems(sa);
+            deleteExistingDatapointAssignments(sa);
             surveyAssignmentDao.delete(sa);
             statusDto.setStatus("ok");
         }
@@ -199,6 +203,11 @@ private void deleteExistingDeviceSurveyJobQueueItems(SurveyAssignment assignment
         deviceSurveyJobQueueDAO.delete(deviceAssignmentsToDelete);
     }
 
+    private void deleteExistingDatapointAssignments(SurveyAssignment assignment) {
+        List<DataPointAssignment> dataPointAssignments = dataPointAssignmentDao.listBySurveyAssignment(assignment.getKey().getId());
+        dataPointAssignmentDao.delete(dataPointAssignments);
+    }
+
     /**
      * creates and saves DeviceSurveyJobQueue objects for each device/survey pair in the assignment.
      */