diff --git a/SUMMARY.md b/SUMMARY.md
index 6e4f7d6..fb5013e 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -191,6 +191,7 @@
   * [CRM Endpoint](notifications/crm-endpoint.md)
   * [Invoice Endpoint](notifications/payments-endpoint.md)
   * [Booking Endpoint](notifications/venues-endpoint.md)
+  * [ARI Endpoint](notifications/ari-endpoint.md)
   * [Event Endpoint](notifications/events-endpoint.md)
 * [Development Reference](development-reference/README.md)
   * [Calculating md5](development-reference/calculating-md5.md)
diff --git a/notifications/ari-endpoint.md b/notifications/ari-endpoint.md
new file mode 100644
index 0000000..cc933de
--- /dev/null
+++ b/notifications/ari-endpoint.md
@@ -0,0 +1,122 @@
+# ARI Notifications (Availability, Rates, Inventory)
+
+iVvy publishes ARI (Availability, Rates, Inventory) notifications to help external systems stay in sync with changes in room availability, rates, and booking rules.
+
+---
+
+## `RoomInventoryUpdated`
+
+### **Message**
+`RoomInventoryUpdated`
+
+### **Body**
+```json
+{
+  "data": [
+    {
+      "date": "2025-12-16",
+      "roomId": 7,
+      "inventoryCount": 3,
+      "availableCount": 3
+    },
+    {
+      "date": "2025-12-16",
+      "roomId": 2,
+      "inventoryCount": 130,
+      "availableCount": 130
+    }
+  ]
+}
+```
+
+### **Description**
+This notification is published when:
+- The room's dynamic inventory is updated via API.*
+- The available count for a room changes.
+- Blocked room count is updated for bookings with status Tentative, Confirmed, or Prospective Hold.
+- Booking status changes between reserved and non-reserved.
+- Booking is moved to different dates.
+- Booking or accommodation block is deleted.
+
+> *Note: * Only applies to venues with a distribution channel.*
+
+---
+
+## `RoomRatesUpdated`
+
+### **Message**
+`RoomRatesUpdated`
+
+### **Body**
+```json
+{
+  "data": [
+    {
+      "barId": 63,
+      "roomId": 122,
+      "date": "2025-07-06",
+      "cost": null,
+      "costDouble": null,
+      "costTriple": null,
+      "costQuad": null
+    },
+    {
+      "barId": 63,
+      "roomId": 123,
+      "date": "2025-07-06",
+      "cost": 50,
+      "costDouble": 60,
+      "costTriple": 0,
+      "costQuad": 80
+    }
+  ]
+}
+```
+
+### **Description**
+This notification is published when:
+- Dynamic room rates are updated via API.*
+- Rate plan values are modified for any future or existing dates.
+
+> *Note: * Only applies to venues with a distribution channel.*
+
+> *Rate plan deletions are not handled.*
+
+---
+
+## `RatePlanBookingRulesUpdated`
+
+### **Message**
+`RatePlanBookingRulesUpdated`
+
+### **Body**
+```json
+{
+  "data": [
+    {
+      "barId": 1,
+      "roomId": 6,
+      "date": "2026-05-09",
+      "closeOutStatus": 2
+    },
+    {
+      "barId": 1,
+      "roomId": 6,
+      "date": "2026-05-10",
+      "closeOutStatus": 2
+    },
+    {
+      "barId": 1,
+      "roomId": 6,
+      "date": "2026-05-11",
+      "closeOutStatus": null
+    }
+  ]
+}
+```
+
+### **Description**
+This notification is published when:
+- Booking rules for a rate plan are updated via API.
+
+---
\ No newline at end of file
diff --git a/notifications/notifications.md b/notifications/notifications.md
index e2c913d..c081abc 100644
--- a/notifications/notifications.md
+++ b/notifications/notifications.md
@@ -191,4 +191,5 @@ Here is the list of endpoints
 | crmEndpoint | [Click Here](crm-endpoint.md) |
 | paymentsEndpoint | [Click Here](payments-endpoint.md) |
 | venuesEndpoint | [Click Here](venues-endpoint.md) |
+| ariEndpoint | [Click Here](ari-endpoint.md) |
 | eventsEndpoint | [Click Here](events-endpoint.md) |