diff --git a/apps/advertisement/models.py b/apps/advertisement/models.py
index 574aff56..18be4516 100644
--- a/apps/advertisement/models.py
+++ b/apps/advertisement/models.py
@@ -50,7 +50,7 @@ class Advertisement(ProjectBaseMixin):
 
     class Meta:
         verbose_name = _('Advertisement')
-        verbose_name_plural = _('Advertisement')
+        verbose_name_plural = _('Advertisements')
 
     def __str__(self):
         return str(self.url)
diff --git a/apps/advertisement/transfer_data.py b/apps/advertisement/transfer_data.py
index 64e715ce..b6e5ace5 100644
--- a/apps/advertisement/transfer_data.py
+++ b/apps/advertisement/transfer_data.py
@@ -5,14 +5,18 @@ from transfer.serializers.advertisement import AdvertisementSerializer
 
 
 def transfer_advertisement():
-    queryset = Ads.objects.filter(href__isnull=False).values_list('id', 'href', 'attachment_suffix_url')
+    errors = []
+    queryset = Ads.objects.exclude(href__isnull=True) \
+                          .exclude(attachment_suffix_url__isnull=True) \
+                          .exclude(site_id__isnull=True)
 
     serialized_data = AdvertisementSerializer(data=list(queryset.values()), many=True)
 
     if serialized_data.is_valid():
         serialized_data.save()
     else:
-        pprint(f"News serializer errors: {serialized_data.errors}")
+        for d in serialized_data.errors: errors.append(d) if d else None
+        pprint(f"transfer_product errors: {errors}")
 
 
 data_types = {
diff --git a/apps/transfer/models.py b/apps/transfer/models.py
index 25fdb527..d2e13d89 100644
--- a/apps/transfer/models.py
+++ b/apps/transfer/models.py
@@ -839,7 +839,7 @@ class PageMetadata(MigrateMixin):
 class Ads(MigrateMixin):
     using = 'legacy'
 
-    site_id = models.IntegerField(blank=True, null=True)
+    site = models.ForeignKey('Sites', on_delete=models.DO_NOTHING)
     href = models.CharField(max_length=255, blank=True, null=True)
     start_at = models.DateTimeField(blank=True, null=True)
     expire_at = models.DateTimeField(blank=True, null=True)
diff --git a/apps/transfer/serializers/advertisement.py b/apps/transfer/serializers/advertisement.py
index a25ee51e..443e23e2 100644
--- a/apps/transfer/serializers/advertisement.py
+++ b/apps/transfer/serializers/advertisement.py
@@ -1,22 +1,51 @@
 from rest_framework import serializers
+from main.models import SiteSettings
 
+from transfer.models import Sites
 from advertisement.models import Advertisement
 
 
-class AdvertisementSerializer(serializers.Serializer):
+class AdvertisementSerializer(serializers.ModelSerializer):
+
     id = serializers.IntegerField()
     href = serializers.CharField()
-    attachment_suffix_url = serializers.CharField(allow_null=True)
+    site_id = serializers.PrimaryKeyRelatedField(
+        queryset=Sites.objects.all())
+    start_at = serializers.DateTimeField(allow_null=True)
+    expire_at = serializers.DateTimeField(allow_null=True)
+
+    class Meta:
+        """Meta class."""
+        model = Advertisement
+        fields = [
+            'id',
+            'href',
+            'site_id',
+            'start_at',
+            'expire_at',
+        ]
 
     def validate(self, data):
         data.update({
             'old_id': data.pop('id'),
             'url': data.pop('href'),
-            'image_url': data.pop('attachment_suffix_url'),
-            'width':  300,
-            'height': 250,
+            'site': self.get_site(data.pop('site_id')),
+            'start': data.pop('start_at', None),
+            'end': data.pop('expire_at', None),
         })
         return data
 
     def create(self, validated_data):
-        return Advertisement.objects.create(**validated_data)
\ No newline at end of file
+        site = validated_data.pop('site')
+        obj, _ = self.Meta.model.objects.get_or_create(validated_data)
+
+        import ipdb;ipdb.set_trace()
+        if site and site not in obj.sites.all():
+            obj.sites.add(site)
+        return obj
+
+    def get_site(self, subdomain):
+        subdomain = subdomain.country_code_2 if isinstance(subdomain, Sites) else subdomain
+        qs = SiteSettings.objects.filter(subdomain=subdomain)
+        if qs.exists():
+            return qs.first()