diff --git a/iaso/admin.py b/iaso/admin.py
index 34c1ae700b..e784022ab1 100644
--- a/iaso/admin.py
+++ b/iaso/admin.py
@@ -528,7 +528,7 @@ def get_queryset(self, request):
 @admin_attr_decorator
 class SourceVersionAdmin(admin.ModelAdmin):
     readonly_fields = ("created_at",)
-    list_display = ["__str__", "data_source", "number", "created_at", "updated_at"]
+    list_display = ["id", "data_source", "number", "created_at", "updated_at"]
     list_filter = ["data_source", "created_at", "updated_at"]
     search_fields = ["data_source__name", "number", "description"]
     autocomplete_fields = ["data_source"]
@@ -826,7 +826,7 @@ class EntityDuplicateAnalyzisAdmin(admin.ModelAdmin):
 class OrgUnitChangeRequestAdmin(admin.ModelAdmin):
     list_display = ("pk", "org_unit", "created_at", "status")
     list_display_links = ("pk", "org_unit")
-    list_filter = ("status", "kind")
+    list_filter = ("status", "kind", "data_source_synchronization")
     readonly_fields = (
         "uuid",
         "created_at",
@@ -851,6 +851,7 @@ class OrgUnitChangeRequestAdmin(admin.ModelAdmin):
         "new_reference_instances",
         "payment",
         "potential_payment",
+        "data_source_synchronization",
     )
     fieldsets = (
         (
@@ -900,6 +901,7 @@ class OrgUnitChangeRequestAdmin(admin.ModelAdmin):
                     "updated_at",
                     "updated_by",
                     "rejection_comment",
+                    "data_source_synchronization",
                 )
             },
         ),
@@ -921,7 +923,7 @@ class OrgUnitChangeRequestAdmin(admin.ModelAdmin):
     )
 
     def get_queryset(self, request):
-        return super().get_queryset(request).select_related("org_unit__org_unit_type")
+        return super().get_queryset(request).select_related("org_unit__org_unit_type", "data_source_synchronization")
 
 
 @admin.register(Config)
@@ -1081,14 +1083,29 @@ class Media:
 
 @admin.register(DataSourceVersionsSynchronization)
 class DataSourceVersionsSynchronizationAdmin(admin.ModelAdmin):
+    list_display = (
+        "pk",
+        "name",
+        "account",
+        "created_by",
+        "count_create",
+        "count_update",
+    )
+    list_display_links = ("pk", "name")
     autocomplete_fields = ("account", "created_by", "source_version_to_update", "source_version_to_compare_with")
-    readonly_fields = ("created_at", "updated_at", "sync_task")
-    formfield_overrides = {
-        ArrayField: {
-            "form_class": ArrayFieldMultipleChoiceField,
-            "widget": forms.CheckboxSelectMultiple,
-        }
-    }
+    readonly_fields = ("json_diff", "count_create", "count_update", "created_at", "updated_at", "sync_task")
+
+    def get_queryset(self, request):
+        return (
+            super()
+            .get_queryset(request)
+            .select_related(
+                "source_version_to_update__data_source",
+                "source_version_to_compare_with__data_source",
+                "account",
+                "created_by",
+            )
+        )
 
 
 admin.site.register(AccountFeatureFlag)
diff --git a/iaso/models/data_source.py b/iaso/models/data_source.py
index 1dc56f31bf..0ebdab7d96 100644
--- a/iaso/models/data_source.py
+++ b/iaso/models/data_source.py
@@ -115,7 +115,7 @@ class Meta:
         ]
 
     def __str__(self):
-        return "%s %d" % (self.data_source, self.number)
+        return f"#{self.pk} n°{self.number} - Data source: {self.data_source}"
 
     def as_dict(self):
         return {
@@ -294,21 +294,22 @@ def create_json_diff(
             "show_deleted_org_units": show_deleted_org_units,
             "field_names": field_names,
         }
-        diffs, fields = Differ(logger_to_use or logger).diff(**differ_params)
+        diffs, _ = Differ(logger_to_use or logger).diff(**differ_params)
+        diffs = [diff for diff in diffs if diff.status != "same"]
 
-        coun_status = {
+        count_status = {
             "new": 0,
             "modified": 0,
         }
         for diff in diffs:
-            if diff.status in coun_status:
-                coun_status[diff.status] += 1
+            if diff.status in count_status:
+                count_status[diff.status] += 1
 
-        self.count_create = coun_status["new"]
-        self.count_update = coun_status["modified"]
+        self.count_create = count_status["new"]
+        self.count_update = count_status["modified"]
         self.json_diff = diffs_to_json(diffs)
         self.diff_config = str(differ_params)
-        self.save(update_fields=["json_diff", "diff_config"])
+        self.save()
 
     def synchronize_source_versions(self):
         # Prevent a circular import.
diff --git a/iaso/tests/models/test_data_source_versions_synchronization.py b/iaso/tests/models/test_data_source_versions_synchronization.py
index 4467610ad1..8ec2140211 100644
--- a/iaso/tests/models/test_data_source_versions_synchronization.py
+++ b/iaso/tests/models/test_data_source_versions_synchronization.py
@@ -227,6 +227,8 @@ def test_create_json_diff(self):
             ignore_groups=True,
             field_names=["name"],
         )
+        data_source_sync.refresh_from_db()
+
         json_diff = json.loads(data_source_sync.json_diff)
 
         comparisons = json_diff[0]["comparisons"]