diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index b507264fb29c..a5a262d73892 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -159382,6 +159382,7 @@ paths:
       description: |-
         Atomically re-sequence the tag indexing rules for an org to match the supplied list of rule UUIDs.
         The server assigns `rule_order` 1, 2, … matching each rule UUID by position in the list.
+        The UUIDs of all active rules must be provided; omitting any active rule UUID returns a 400 error.
         Requires the `Manage Tags for Metrics` permission.
       operationId: ReorderTagIndexingRules
       requestBody:
diff --git a/lib/datadog_api_client/v2/api/metrics_api.rb b/lib/datadog_api_client/v2/api/metrics_api.rb
index 66e31fe52616..bfed3be17776 100644
--- a/lib/datadog_api_client/v2/api/metrics_api.rb
+++ b/lib/datadog_api_client/v2/api/metrics_api.rb
@@ -1692,6 +1692,7 @@ def reorder_tag_indexing_rules(body, opts = {})
     #
     # Atomically re-sequence the tag indexing rules for an org to match the supplied list of rule UUIDs.
     # The server assigns `rule_order` 1, 2, … matching each rule UUID by position in the list.
+    # The UUIDs of all active rules must be provided; omitting any active rule UUID returns a 400 error.
     # Requires the `Manage Tags for Metrics` permission.
     #
     # @param body [TagIndexingRuleOrderRequest]