diff --git a/src/sentry/rules/actions/notify_event_service.py b/src/sentry/rules/actions/notify_event_service.py
index 31fe09bf88bc9a..1f30adc75f0bc3 100644
--- a/src/sentry/rules/actions/notify_event_service.py
+++ b/src/sentry/rules/actions/notify_event_service.py
@@ -103,18 +103,27 @@ def find_alert_rule_action_ui_component(app_platform_event: AppPlatformEvent) ->
     Loop through the triggers for the alert rule event. For each trigger, check
     if an action is an alert rule UI Component
     """
-    triggers = (
-        getattr(app_platform_event, "data", {})
-        .get("metric_alert", {})
-        .get("alert_rule", {})
-        .get("triggers", [])
-    )
+    data = getattr(app_platform_event, "data", {}) or {}
+
+    metric_alert = data.get("metric_alert") or {}
+    if not isinstance(metric_alert, dict):
+        metric_alert = {}
+
+    alert_rule = metric_alert.get("alert_rule") or {}
+    if not isinstance(alert_rule, dict):
+        alert_rule = {}
+
+    triggers = alert_rule.get("triggers") or []
+    if not isinstance(triggers, list):
+        triggers = []
 
     actions = [
         action
         for trigger in triggers
-        for action in trigger.get("actions", {})
-        if (action.get("type") == "sentry_app" and action.get("settings") is not None)
+        if isinstance(trigger, dict)
+        for action in trigger.get("actions") or []
+        if isinstance(action, dict)
+        if action.get("type") == "sentry_app" and action.get("settings") is not None
     ]
 
     return bool(len(actions))
diff --git a/tests/sentry/rules/actions/test_notify_event_service.py b/tests/sentry/rules/actions/test_notify_event_service.py
index ac43f7bc7fb8ad..46bbba53f09a2c 100644
--- a/tests/sentry/rules/actions/test_notify_event_service.py
+++ b/tests/sentry/rules/actions/test_notify_event_service.py
@@ -1,11 +1,15 @@
+from types import SimpleNamespace
 from unittest.mock import MagicMock, patch
 
 from django.utils import timezone
 
-from sentry.rules.actions.notify_event_service import NotifyEventServiceAction
+from sentry.rules.actions.notify_event_service import (
+    NotifyEventServiceAction,
+    find_alert_rule_action_ui_component,
+)
 from sentry.sentry_apps.tasks.sentry_apps import notify_sentry_app
 from sentry.silo.base import SiloMode
-from sentry.testutils.cases import RuleTestCase
+from sentry.testutils.cases import RuleTestCase, TestCase
 from sentry.testutils.silo import assume_test_silo_mode
 from sentry.testutils.skips import requires_snuba
 
@@ -90,3 +94,32 @@ def test_sentry_app_installed(self) -> None:
 
         results = rule.get_services()
         assert len(results) == 0
+
+
+class FindAlertRuleActionUiComponentTest(TestCase):
+    def test_handles_null_metric_alert_payload(self) -> None:
+        event = SimpleNamespace(data={"metric_alert": None})
+
+        assert not find_alert_rule_action_ui_component(event)
+
+    def test_detects_sentry_app_action(self) -> None:
+        event = SimpleNamespace(
+            data={
+                "metric_alert": {
+                    "alert_rule": {
+                        "triggers": [
+                            {
+                                "actions": [
+                                    {
+                                        "type": "sentry_app",
+                                        "settings": {"foo": "bar"},
+                                    }
+                                ]
+                            }
+                        ]
+                    }
+                }
+            }
+        )
+
+        assert find_alert_rule_action_ui_component(event)