diff --git a/telemetry/definitions/commonDefinitions.json b/telemetry/definitions/commonDefinitions.json
index 90d0c85b..332b1ce1 100644
--- a/telemetry/definitions/commonDefinitions.json
+++ b/telemetry/definitions/commonDefinitions.json
@@ -1605,6 +1605,11 @@
             ],
             "description": "Type of generation failure"
         },
+        {
+            "name": "grantType",
+            "type": "string",
+            "description": "OAuth 2.0 grant type for SSO token operations"
+        },
         {
             "name": "hasChatAuth",
             "type": "boolean",
@@ -4005,6 +4010,36 @@
             "metadata": [],
             "passive": true
         },
+        {
+            "name": "auth_ssoTokenOperation",
+            "description": "Tracks SSO token operations (refresh, new login)",
+            "metadata": [
+                {
+                    "type": "duration",
+                    "required": false
+                },
+                {
+                    "type": "grantType",
+                    "required": true
+                },
+                {
+                    "type": "reason",
+                    "required": false
+                },
+                {
+                    "type": "reasonDesc",
+                    "required": false
+                },
+                {
+                    "type": "requestId",
+                    "required": false
+                },
+                {
+                    "type": "result",
+                    "required": true
+                }
+            ]
+        },
         {
             "name": "auth_switchRoles",
             "description": "Called when user clicks yes or no to switch role upon adding new connection",