add failed docs rule

Author: mdbirnstiehl

solutions/observability/incident-management/create-a-failed-docs-rule.md

@@ -0,0 +1,20 @@
+---
+navigation_title: Failed docs
+products:
+  - id: observability
+  - id: cloud-serverless
+applies_to:
+  stack: ga 9.1
+  serverless: ga
+---
+
+# Create a failed docs rule [observability-aiops-generate-anomaly-alerts]
+
+
+::::{note}
+
+The **Editor** role or higher is required to create a failed docs rule using custom threshold rule. To learn more, refer to [Assign user roles and privileges](/deploy-manage/users-roles/cloud-organization/user-roles.md#general-assign-user-roles).
+
+::::
+
+Create a failed docs rule using the [custom threshold rule](../incident-management/create-custom-threshold-rule.md) to alert when the number of failed documents in your data stream reaches or exceeds a given value