diff --git a/daikoku/app/domain/SchemaDefinition.scala b/daikoku/app/domain/SchemaDefinition.scala
index 19b39e58c..09dae2775 100644
--- a/daikoku/app/domain/SchemaDefinition.scala
+++ b/daikoku/app/domain/SchemaDefinition.scala
@@ -3251,6 +3251,22 @@ object SchemaDefinition {
         )
       )
     )
+    lazy val ApiSubscriptionTransferSuccessType = new PossibleObject(
+      ObjectType(
+        "ApiSubscriptionTransferSuccess",
+        "A notification triggered when a checkout session is available",
+        interfaces[
+          (DataStore, DaikokuActionContext[JsValue]),
+          ApiSubscriptionTransferSuccess
+        ](NotificationActionType),
+        fields[
+          (DataStore, DaikokuActionContext[JsValue]),
+          ApiSubscriptionTransferSuccess
+        ](
+          Field("subscription", StringType, resolve = _.value.subscription.value)
+        )
+      )
+    )
 
     lazy val NotificationInterfaceType: ObjectType[
       (DataStore, DaikokuActionContext[JsValue]),
@@ -3361,7 +3377,8 @@ object SchemaDefinition {
             TransferApiOwnershipType,
             ApiSubscriptionRejectType,
             ApiSubscriptionAcceptType,
-            CheckoutForSubscriptionType
+            CheckoutForSubscriptionType,
+            ApiSubscriptionTransferSuccessType
           )
         )
       )