diff --git a/doc/source/admintasks/kubernetes/oran-o2-application-b50a0c899e66.rst b/doc/source/admintasks/kubernetes/oran-o2-application-b50a0c899e66.rst
index e2716a03d..a1328fb31 100644
--- a/doc/source/admintasks/kubernetes/oran-o2-application-b50a0c899e66.rst
+++ b/doc/source/admintasks/kubernetes/oran-o2-application-b50a0c899e66.rst
@@ -13,9 +13,17 @@ interface between the O-Cloud (|prod|) and the Service Management & Orchestratio
 
 The O2 interfaces enable the management of the O-Cloud (|prod|) infrastructure
 and the deployment life-cycle management of |O-RAN| cloudified |NFs| that run on
-O-Cloud (|prod|).  See `O-RAN O2 General Aspects and Principles 2.0
-<https://orandownloadsweb.azurewebsites.net/specifications>`__, and `INF O2
-documentation <https://docs.o-ran-sc.org/projects/o-ran-sc-pti-o2/en/latest/>`__.
+O-Cloud (|prod|). For more information see:
+
+-  O-RAN O2 complies with the specifications of `INF O2 IMS and DMS Spec Compliance <https://lf-o-ran-sc.atlassian.net/wiki/spaces/IN/pages/14385176/INF+O2+IMS+and+DMS+Spec+Compliance>`__.
+   
+   .. note::
+      This O-RAN specification on O2 |IMS| support for alarm acknowledgment and
+      clearing was defined in **G** Release. See `Welcome to INF O2 documentation <https://docs.o-ran-sc.org/projects/o-ran-sc-pti-o2/en/latest/>`__.
+      This feature is supported in |v_r9| version. Therefore, |v_r8| version
+      follows the older specification which does not have this API definition. 
+
+-  `INF O2 Services API <https://docs.o-ran-sc.org/projects/o-ran-sc-pti-o2/en/g-release/oran-o2-api.html>`__.
 
 The |O-RAN| O2 application is integrated into |prod| as a system application.
 The |O-RAN| O2 application package is saved in |prod| during system
@@ -313,6 +321,12 @@ of O-RAN cloudified |NFs|. See the following API reference for details:
 
 -  `API O-RAN O2 interface <https://docs.o-ran-sc.org/projects/o-ran-sc-pti-o2/en/j-release/api.html>`__
 
+.. note::
+   |O-RAN| O2 interface limitations:
+
+   -  In the |prod| |v_r8| version, in the ``GET：/o2ims-infrastructureMonitoring/v1/alarm``
+      API resource, alarm clearing events are not recorded.
+
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 Uninstall
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