diff --git a/docs/api.rst b/docs/api.rst
index 8b559dc..0644414 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -805,4 +805,4 @@ stacky/usage/exists
         ]
       ]
 
-  :query instance: desired instance UUID (optional)
+  :query instance: desired instance UUID (optional)
\ No newline at end of file
diff --git a/docs/dbapi.rst b/docs/dbapi.rst
index d23cac4..954caaa 100644
--- a/docs/dbapi.rst
+++ b/docs/dbapi.rst
@@ -874,4 +874,75 @@ Returns a single instance exists matching provided id
           "id": 5300,
           "delete": null
         }
-      }
\ No newline at end of file
+      }
+
+db/count/verified/
+==================
+
+.. http:get:: http://example.com/count/verified/
+
+Returns a count of .verified events stored in Stacktach's Rawdata table from
+``audit_period_beginning`` to ``audit_period_ending``
+
+  **Query Parameters**
+
+  * ``audit_period_beginning``: datetime (yyyy-mm-dd)
+  * ``audit_period_ending``: datetime (yyyy-mm-dd)
+  * ``service``: ``nova`` or ``glance``. default="nova"
+
+  **Example request**:
+
+   .. sourcecode:: http
+
+      GET db/count/verified/ HTTP/1.1
+      Host: example.com
+      Accept: application/json
+
+
+  **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: application/json
+
+      {
+        count: 10
+      }
+
+repair
+======
+
+.. http:post:: http://example.com/repair/
+
+   Changes the status of all the exists of message-ids sent with the request
+   from 'pending' to 'sent_unverified' so that the verifier does not end up
+   sending .verified for all those exists(since the .exists have already been
+   modified as .verified and sent to AH by Yagi). It sends back the message-ids
+   of exists which could not be updated in the json response.
+
+      **Example request**:
+
+   .. sourcecode::http
+
+      POST /repair/  HTTP/1.1
+      Host: example.com
+      Accept: application/json
+
+    **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: text/json
+
+      {
+      u'exists_not_pending': [u'494ebfce-0219-4b62-b810-79039a279620'],
+      u'absent_exists': [u'7609f3b2-3694-4b6f-869e-2f13ae504cb2',
+                         u'0c64032e-4a60-44c0-a99d-5a4f2e46afb0']
+      }
+
+  :query message_ids: list of message_ids of exists messages
+  :query service: ``nova`` or ``glance``. default="nova"
diff --git a/stacktach/dbapi.py b/stacktach/dbapi.py
index 174c50b..f170f34 100644
--- a/stacktach/dbapi.py
+++ b/stacktach/dbapi.py
@@ -21,6 +21,7 @@
 import decimal
 import functools
 import json
+from datetime import datetime
 
 from django.db import transaction
 from django.db.models import Count
@@ -445,3 +446,50 @@ def _convert_model_list(model_list, extra_values_func=None):
         converted.append(_convert_model(item, extra_values_func))
 
     return converted
+
+
+def _rawdata_factory(service):
+    if service == "nova":
+        rawdata = models.RawData.objects
+    elif service == "glance":
+        rawdata = models.GlanceRawData.objects
+    else:
+        raise BadRequestException(message="Invalid service")
+    return rawdata
+
+
+@api_call
+def get_verified_count(request):
+    try:
+        audit_period_beginning = datetime.strptime(
+            request.GET.get("audit_period_beginning"), "%Y-%m-%d")
+        audit_period_ending = datetime.strptime(
+            request.GET.get("audit_period_ending"), "%Y-%m-%d")
+        service = request.GET.get("service", "nova")
+        rawdata = _rawdata_factory(service)
+        filters = {
+            'when__gte': dt.dt_to_decimal(audit_period_beginning),
+            'when__lte': dt.dt_to_decimal(audit_period_ending),
+            'event': "compute.instance.exists.verified"
+        }
+        return {'count': rawdata.filter(**filters).count()}
+    except KeyError and TypeError:
+        raise BadRequestException(message="Invalid/absent query parameter")
+    except ValueError:
+        raise BadRequestException(message="Invalid format for date (Correct "
+                                          "format should be %YYYY-%mm-%dd)")
+
+
+def repair_stacktach_down(request):
+    post_dict = dict((request.POST._iterlists()))
+    message_ids = post_dict.get('message_ids')
+    service = post_dict.get('service', ['nova'])
+    klass = _exists_model_factory(service[0])['klass']
+    absent_exists, exists_not_pending = \
+        klass.mark_exists_as_sent_unverified(message_ids)
+    response_data = {'absent_exists': absent_exists,
+                     'exists_not_pending': exists_not_pending}
+    response = HttpResponse(json.dumps(response_data),
+                            content_type="application/json")
+    return response
+
diff --git a/stacktach/models.py b/stacktach/models.py
index 9d1e0fb..d9afe35 100644
--- a/stacktach/models.py
+++ b/stacktach/models.py
@@ -338,6 +338,24 @@ class InstanceExists(models.Model):
     def update_status(self, new_status):
         self.status = new_status
 
+    @staticmethod
+    def mark_exists_as_sent_unverified(message_ids):
+        absent_exists = []
+        exists_not_pending = []
+        for message_id in message_ids:
+            try:
+                exists = InstanceExists.objects.get(message_id=message_id)
+                if exists.status == InstanceExists.PENDING:
+                    exists.status = InstanceExists.SENT_UNVERIFIED
+                    exists.save()
+                else:
+                    exists_not_pending.append(message_id)
+            except Exception:
+                absent_exists.append(message_id)
+        return absent_exists, exists_not_pending
+
+
+
 
 class Timing(models.Model):
     """Each Timing record corresponds to a .start/.end event pair
@@ -536,6 +554,24 @@ class ImageExists(models.Model):
             self.fail_reason = reason
         self.save()
 
+    @staticmethod
+    def mark_exists_as_sent_unverified(message_ids):
+        absent_exists = []
+        exists_not_pending = []
+        for message_id in message_ids:
+            exists_list = ImageExists.objects.filter(message_id=message_id)
+            if exists_list:
+                for exists in exists_list:
+                    if exists.status == ImageExists.PENDING:
+                        exists.status = ImageExists.SENT_UNVERIFIED
+                        exists.save()
+                    else:
+                        exists_not_pending.append(message_id)
+            else :
+                absent_exists.append(message_id)
+        return absent_exists, exists_not_pending
+
+
 
 def get_model_fields(model):
     return model._meta.fields
diff --git a/stacktach/urls.py b/stacktach/urls.py
index b5d471c..2bd64de 100644
--- a/stacktach/urls.py
+++ b/stacktach/urls.py
@@ -91,6 +91,8 @@ dbapi_urls = (
         'stacktach.dbapi.get_usage_exist_stats'),
     url(r'db/stats/glance/exists$',
         'stacktach.dbapi.get_usage_exist_stats_glance'),
+    url(r'db/count/verified', 'stacktach.dbapi.get_verified_count'),
+    url(r'db/repair/', 'stacktach.dbapi.repair_stacktach_down'),
 )
 
 urlpatterns = patterns('', *(web_urls + stacky_urls + dbapi_urls))
diff --git a/tests/unit/test_dbapi.py b/tests/unit/test_dbapi.py
index 3de9b11..07d1b84 100644
--- a/tests/unit/test_dbapi.py
+++ b/tests/unit/test_dbapi.py
@@ -19,6 +19,7 @@
 # IN THE SOFTWARE.
 
 import datetime
+from decimal import Decimal
 import json
 
 from django.db.models import Count
@@ -129,8 +130,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         fake_request = self.mox.CreateMockAnything()
         fake_request.GET = {'somebadfield_max': str(start_time)}
         fake_model = self.make_fake_model()
-        fake_model._meta.get_field_by_name('somebadfield')\
-                  .AndRaise(FieldDoesNotExist())
+        fake_model._meta.get_field_by_name('somebadfield') \
+            .AndRaise(FieldDoesNotExist())
         self.mox.ReplayAll()
 
         self.assertRaises(dbapi.BadRequestException, dbapi._get_filter_args,
@@ -312,7 +313,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         fake_request.GET = filters
         self.mox.StubOutWithMock(dbapi, '_get_filter_args')
         dbapi._get_filter_args(fake_model, fake_request,
-                               custom_filters=custom_filters).AndReturn(filters)
+                               custom_filters=custom_filters).AndReturn(
+            filters)
         self.mox.StubOutWithMock(dbapi, '_check_has_field')
         dbapi._check_has_field(fake_model, 'id')
         result = self.mox.CreateMockAnything()
@@ -563,7 +565,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         exists1.send_status = 200
         self.mox.VerifyAll()
 
-    def test_send_status_batch_accepts_post_for_nova_and_glance_when_version_is_1(self):
+    def test_send_status_batch_accepts_post_for_nova_and_glance_when_version_is_1(
+            self):
         fake_request = self.mox.CreateMockAnything()
         fake_request.method = 'POST'
         fake_request.GET = {'service': 'glance'}
@@ -591,14 +594,16 @@ class DBAPITestCase(StacktachBaseTestCase):
         models.ImageExists.objects.select_for_update().AndReturn(results1)
         exists1A = self.mox.CreateMockAnything()
         exists1B = self.mox.CreateMockAnything()
-        results1.filter(message_id=MESSAGE_ID_2).AndReturn([exists1A, exists1B])
+        results1.filter(message_id=MESSAGE_ID_2).AndReturn(
+            [exists1A, exists1B])
         exists1A.save()
         exists1B.save()
         results2 = self.mox.CreateMockAnything()
         models.ImageExists.objects.select_for_update().AndReturn(results2)
         exists2A = self.mox.CreateMockAnything()
         exists2B = self.mox.CreateMockAnything()
-        results2.filter(message_id=MESSAGE_ID_1).AndReturn([exists2A, exists2B])
+        results2.filter(message_id=MESSAGE_ID_1).AndReturn(
+            [exists2A, exists2B])
         exists2A.save()
         exists2B.save()
         trans_obj.__exit__(None, None, None)
@@ -609,7 +614,6 @@ class DBAPITestCase(StacktachBaseTestCase):
         self.mox.VerifyAll()
 
 
-
     def test_send_status_batch_accepts_post_when_version_is_0(self):
         fake_request = self.mox.CreateMockAnything()
         fake_request.method = 'POST'
@@ -764,7 +768,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         launches = {'a': 1}
         self.mox.StubOutWithMock(dbapi, '_convert_model_list')
         dbapi._convert_model_list(mock_objects).AndReturn(launches)
-        dbapi.get_db_objects(models.InstanceUsage, fake_request, 'launched_at').AndReturn(mock_objects)
+        dbapi.get_db_objects(models.InstanceUsage, fake_request,
+                             'launched_at').AndReturn(mock_objects)
         self.mox.ReplayAll()
 
         resp = dbapi.list_usage_launches(fake_request)
@@ -781,7 +786,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         launches = {'a': 1}
         self.mox.StubOutWithMock(dbapi, '_convert_model_list')
         dbapi._convert_model_list(mock_objects).AndReturn(launches)
-        dbapi.get_db_objects(models.ImageUsage, fake_request, 'created_at').AndReturn(mock_objects)
+        dbapi.get_db_objects(models.ImageUsage, fake_request,
+                             'created_at').AndReturn(mock_objects)
         self.mox.ReplayAll()
 
         resp = dbapi.list_usage_images(fake_request)
@@ -798,7 +804,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         launches = {'a': 1}
         self.mox.StubOutWithMock(dbapi, '_convert_model_list')
         dbapi._convert_model_list(mock_objects).AndReturn(launches)
-        dbapi.get_db_objects(models.InstanceUsage, fake_request, 'launched_at').AndReturn(mock_objects)
+        dbapi.get_db_objects(models.InstanceUsage, fake_request,
+                             'launched_at').AndReturn(mock_objects)
         self.mox.ReplayAll()
 
         resp = dbapi.list_usage_launches(fake_request)
@@ -885,7 +892,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         deletes = {'a': 1}
         self.mox.StubOutWithMock(dbapi, '_convert_model_list')
         dbapi._convert_model_list(mock_objects).AndReturn(deletes)
-        dbapi.get_db_objects(models.InstanceDeletes, fake_request, 'launched_at').AndReturn(mock_objects)
+        dbapi.get_db_objects(models.InstanceDeletes, fake_request,
+                             'launched_at').AndReturn(mock_objects)
         self.mox.ReplayAll()
 
         resp = dbapi.list_usage_deletes(fake_request)
@@ -902,7 +910,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         deletes = {'a': 1}
         self.mox.StubOutWithMock(dbapi, '_convert_model_list')
         dbapi._convert_model_list(mock_objects).AndReturn(deletes)
-        dbapi.get_db_objects(models.InstanceDeletes, fake_request, 'launched_at').AndReturn(mock_objects)
+        dbapi.get_db_objects(models.InstanceDeletes, fake_request,
+                             'launched_at').AndReturn(mock_objects)
         self.mox.ReplayAll()
 
         resp = dbapi.list_usage_deletes(fake_request)
@@ -919,7 +928,8 @@ class DBAPITestCase(StacktachBaseTestCase):
         deletes = {'a': 1}
         self.mox.StubOutWithMock(dbapi, '_convert_model_list')
         dbapi._convert_model_list(mock_objects).AndReturn(deletes)
-        dbapi.get_db_objects(models.ImageDeletes, fake_request, 'deleted_at').AndReturn(mock_objects)
+        dbapi.get_db_objects(models.ImageDeletes, fake_request,
+                             'deleted_at').AndReturn(mock_objects)
         self.mox.ReplayAll()
 
         resp = dbapi.list_usage_deletes_glance(fake_request)
@@ -1092,3 +1102,118 @@ class DBAPITestCase(StacktachBaseTestCase):
         expected_response = json.dumps({'stats': result})
         self.assertEqual(expected_response, response.content)
         self.mox.VerifyAll()
+
+    def test_get_verified_count(self):
+        fake_request = self.mox.CreateMockAnything()
+        fake_request.method = 'GET'
+        fake_request.GET = {'audit_period_beginning': "2014-02-26",
+                            'audit_period_ending': "2014-02-27",
+                            'service': "nova"}
+        mock_query = self.mox.CreateMockAnything()
+        self.mox.StubOutWithMock(models.RawData.objects, "filter")
+        models.RawData.objects.filter(event='compute.instance.exists.verified',
+                                      when__gte=Decimal('1393372800'),
+                                      when__lte=Decimal('1393459200')).\
+            AndReturn(mock_query)
+        mock_query.count().AndReturn(100)
+        self.mox.ReplayAll()
+
+        response = dbapi.get_verified_count(fake_request)
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(json.loads(response.content), {'count': 100})
+        self.mox.VerifyAll()
+
+    def test_get_verified_count_wrong_date_format_returns_400(self):
+        fake_request = self.mox.CreateMockAnything()
+        fake_request.method = 'GET'
+        fake_request.GET = {'audit_period_beginning': "2014-020-26",
+
+                            'service': "nova"}
+
+        self.mox.ReplayAll()
+
+        response = dbapi.get_verified_count(fake_request)
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(json.loads(response.content)['message'],
+                         "Invalid format for date"
+                         " (Correct format should be %YYYY-%mm-%dd)")
+        self.mox.VerifyAll()
+
+    def test_get_verified_count_wrong_service_returns_400(self):
+        fake_request = self.mox.CreateMockAnything()
+        fake_request.method = 'GET'
+        fake_request.GET = {'audit_period_beginning': "2014-02-26",
+                            "audit_period_ending": "2014-02-27",
+                            'service': "qonos"}
+
+        self.mox.ReplayAll()
+
+        response = dbapi.get_verified_count(fake_request)
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(json.loads(response.content)['message'],
+                         "Invalid service")
+        self.mox.VerifyAll()
+
+    def test_get_verified_count_invalid_query_parameter_returns_400(self):
+        fake_request = self.mox.CreateMockAnything()
+        fake_request.method = 'GET'
+        fake_request.GET = {'audit_period': "2014-02-26",}
+
+        self.mox.ReplayAll()
+
+        response = dbapi.get_verified_count(fake_request)
+        self.assertEqual(response.status_code, 400)
+        self.assertEqual(json.loads(response.content)['message'],
+                         "Invalid/absent query parameter")
+        self.mox.VerifyAll()
+
+class StacktachRepairScenarioApi(StacktachBaseTestCase):
+    def setUp(self):
+        self.mox = mox.Mox()
+
+    def tearDown(self):
+        self.mox.UnsetStubs()
+
+    def test_change_nova_exists_status_for_all_exists(self):
+        request = self.mox.CreateMockAnything()
+        request.POST = self.mox.CreateMockAnything()
+        message_ids = ["04fd94b5-64dd-4559-83b7-981d9d4f7a5a",
+                       "14fd94b5-64dd-4559-83b7-981d9d4f7a5a",
+                       "24fd94b5-64dd-4559-83b7-981d9d4f7a5a"]
+        request.POST._iterlists().AndReturn([('service', ['nova']),
+                                             ('message_ids', message_ids)])
+        self.mox.StubOutWithMock(models.InstanceExists,
+                                 'mark_exists_as_sent_unverified')
+        models.InstanceExists.mark_exists_as_sent_unverified(message_ids).\
+            AndReturn([[], []])
+        self.mox.ReplayAll()
+
+        response = dbapi.repair_stacktach_down(request)
+        self.assertEqual(response.status_code, 200)
+        response_data = json.loads(response.content)
+        self.assertEqual(response_data['exists_not_pending'], [])
+        self.assertEqual(response_data['absent_exists'], [])
+
+        self.mox.VerifyAll()
+
+    def test_change_glance_exists_status_for_all_exists(self):
+        request = self.mox.CreateMockAnything()
+        request.POST = self.mox.CreateMockAnything()
+        message_ids = ['04fd94b5-64dd-4559-83b7-981d9d4f7a5a',
+                       '14fd94b5-64dd-4559-83b7-981d9d4f7a5a',
+                       '24fd94b5-64dd-4559-83b7-981d9d4f7a5a']
+        request.POST._iterlists().AndReturn([('service', ['glance']),
+                                             ('message_ids', message_ids)])
+        self.mox.StubOutWithMock(models.ImageExists,
+                                 'mark_exists_as_sent_unverified')
+        models.ImageExists.mark_exists_as_sent_unverified(message_ids).\
+            AndReturn([[], []])
+        self.mox.ReplayAll()
+
+        response = dbapi.repair_stacktach_down(request)
+        self.assertEqual(response.status_code, 200)
+        response_data = json.loads(response.content)
+        self.assertEqual(response_data['exists_not_pending'], [])
+        self.assertEqual(response_data['absent_exists'], [])
+
+        self.mox.VerifyAll()
diff --git a/tests/unit/test_models.py b/tests/unit/test_models.py
index ea32261..f2c7a03 100644
--- a/tests/unit/test_models.py
+++ b/tests/unit/test_models.py
@@ -112,6 +112,81 @@ class ImageExistsTestCase(unittest.TestCase):
                                    'owner1-3': [exist4],
                                    'owner2-2': [exist2]})
 
+    def test_mark_exists_as_sent_unverified(self):
+        message_ids = ["0708cb0b-6169-4d7c-9f58-3cf3d5bf694b",
+                       "9156b83e-f684-4ec3-8f94-7e41902f27aa"]
+
+        exist1 = self.mox.CreateMockAnything()
+        exist1.status = "pending"
+        exist1.save()
+        exist2 = self.mox.CreateMockAnything()
+        exist2.status = "pending"
+        exist2.save()
+        exist3 = self.mox.CreateMockAnything()
+        exist3.status = "pending"
+        exist3.save()
+        self.mox.StubOutWithMock(ImageExists.objects, 'filter')
+        ImageExists.objects.filter(message_id=message_ids[0]).AndReturn(
+            [exist1, exist2])
+        ImageExists.objects.filter(message_id=message_ids[1]).AndReturn(
+            [exist3])
+        self.mox.ReplayAll()
+
+        results = ImageExists.mark_exists_as_sent_unverified(message_ids)
+
+        self.assertEqual(results, ([], []))
+
+        self.mox.VerifyAll()
+
+    def test_mark_exists_as_sent_unverified_return_absent_exists(self):
+        message_ids = ["0708cb0b-6169-4d7c-9f58-3cf3d5bf694b",
+                       "9156b83e-f684-4ec3-8f94-7e41902f27aa"]
+
+        exist1 = self.mox.CreateMockAnything()
+        exist1.status = "pending"
+        exist1.save()
+        exist2 = self.mox.CreateMockAnything()
+        exist2.status = "pending"
+        exist2.save()
+        self.mox.StubOutWithMock(ImageExists.objects, 'filter')
+        ImageExists.objects.filter(message_id=message_ids[0]).AndReturn(
+            [exist1, exist2])
+        ImageExists.objects.filter(message_id=message_ids[1]).AndReturn([])
+        self.mox.ReplayAll()
+
+        results = ImageExists.mark_exists_as_sent_unverified(message_ids)
+
+        self.assertEqual(results, (['9156b83e-f684-4ec3-8f94-7e41902f27aa'],
+                                   []))
+
+        self.mox.VerifyAll()
+
+    def test_mark_exists_as_sent_unverified_and_return_exist_not_pending(self):
+        message_ids = ["0708cb0b-6169-4d7c-9f58-3cf3d5bf694b",
+                       "9156b83e-f684-4ec3-8f94-7e41902f27aa"]
+
+        exist1 = self.mox.CreateMockAnything()
+        exist1.status = "pending"
+        exist1.save()
+        exist2 = self.mox.CreateMockAnything()
+        exist2.status = "verified"
+        exist3 = self.mox.CreateMockAnything()
+        exist3.status = "pending"
+        exist3.save()
+        self.mox.StubOutWithMock(ImageExists.objects, 'filter')
+        ImageExists.objects.filter(message_id=message_ids[0]).AndReturn(
+            [exist1, exist2])
+        ImageExists.objects.filter(message_id=message_ids[1]).AndReturn(
+            [exist3])
+        self.mox.ReplayAll()
+
+        results = ImageExists.mark_exists_as_sent_unverified(message_ids)
+
+        self.assertEqual(results, ([],
+                                   ["0708cb0b-6169-4d7c-9f58-3cf3d5bf694b"]))
+
+        self.mox.VerifyAll()
+
 
 class InstanceExistsTestCase(unittest.TestCase):
     def setUp(self):
@@ -137,3 +212,66 @@ class InstanceExistsTestCase(unittest.TestCase):
 
         self.mox.VerifyAll()
         self.assertEqual(results, [1, 2])
+
+    def test_mark_exists_as_sent_unverified(self):
+        message_ids = ["0708cb0b-6169-4d7c-9f58-3cf3d5bf694b",
+                       "9156b83e-f684-4ec3-8f94-7e41902f27aa"]
+
+        exist1 = self.mox.CreateMockAnything()
+        exist1.status = "pending"
+        exist1.save()
+        exist2 = self.mox.CreateMockAnything()
+        exist2.status = "pending"
+        exist2.save()
+        self.mox.StubOutWithMock(InstanceExists.objects, 'get')
+        InstanceExists.objects.get(message_id=message_ids[0]).AndReturn(exist1)
+        InstanceExists.objects.get(message_id=message_ids[1]).AndReturn(exist2)
+        self.mox.ReplayAll()
+
+        results = InstanceExists.mark_exists_as_sent_unverified(message_ids)
+
+        self.assertEqual(results, ([], []))
+
+        self.mox.VerifyAll()
+
+    def test_mark_exists_as_sent_unverified_return_absent_exists(self):
+        message_ids = ["0708cb0b-6169-4d7c-9f58-3cf3d5bf694b",
+                       "9156b83e-f684-4ec3-8f94-7e41902f27aa"]
+
+        exist1 = self.mox.CreateMockAnything()
+        exist1.status = "pending"
+        exist1.save()
+        self.mox.StubOutWithMock(InstanceExists.objects, 'get')
+        InstanceExists.objects.get(message_id=message_ids[0]).AndReturn(exist1)
+        InstanceExists.objects.get(message_id=message_ids[1]).AndRaise(
+            Exception)
+        self.mox.ReplayAll()
+
+        results = InstanceExists.mark_exists_as_sent_unverified(message_ids)
+
+        self.assertEqual(results, (['9156b83e-f684-4ec3-8f94-7e41902f27aa'],
+                                   []))
+
+        self.mox.VerifyAll()
+
+    def test_mark_exists_as_sent_unverified_and_return_exist_not_pending(self):
+        message_ids = ["0708cb0b-6169-4d7c-9f58-3cf3d5bf694b",
+                       "9156b83e-f684-4ec3-8f94-7e41902f27aa"]
+
+        exist1 = self.mox.CreateMockAnything()
+        exist1.status = "pending"
+        exist1.save()
+        exist2 = self.mox.CreateMockAnything()
+        exist2.status = "verified"
+        self.mox.StubOutWithMock(InstanceExists.objects, 'get')
+        InstanceExists.objects.get(message_id=message_ids[0]).AndReturn(exist1)
+        InstanceExists.objects.get(message_id=message_ids[1]).AndReturn(exist2)
+        self.mox.ReplayAll()
+
+        results = InstanceExists.mark_exists_as_sent_unverified(message_ids)
+
+        self.assertEqual(results, ([],
+                                   ["9156b83e-f684-4ec3-8f94-7e41902f27aa"]))
+
+        self.mox.VerifyAll()
+
diff --git a/tests/unit/test_stacktach.py b/tests/unit/test_stacktach.py
index 4ca4311..a668f13 100644
--- a/tests/unit/test_stacktach.py
+++ b/tests/unit/test_stacktach.py
@@ -38,8 +38,7 @@ from utils import TENANT_ID_1
 from utils import INSTANCE_TYPE_ID_1
 from utils import DUMMY_TIME
 from utils import INSTANCE_TYPE_ID_2
-from utils import IMAGE_UUID_1
-from stacktach import stacklog
+from stacktach import stacklog, models
 from stacktach import notification
 from stacktach import views
 from tests.unit import StacktachBaseTestCase