diff --git a/.generated-info b/.generated-info
index 97f73416afa8..ecf00039e30e 100644
--- a/.generated-info
+++ b/.generated-info
@@ -1,4 +1,4 @@
 {
-  "spec_repo_commit": "e22129c",
-  "generated": "2025-08-25 17:47:35.253"
+  "spec_repo_commit": "1e6c346",
+  "generated": "2025-08-25 18:45:37.801"
 }
diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index e9385b0038fe..3705ce533ddd 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -49699,6 +49699,12 @@ paths:
               schema:
                 $ref: '#/components/schemas/APIErrorResponse'
           description: Forbidden
+        '404':
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/APIErrorResponse'
+          description: Not Found
         '429':
           $ref: '#/components/responses/TooManyRequestsResponse'
       security:
@@ -49851,6 +49857,12 @@ paths:
               schema:
                 $ref: '#/components/schemas/APIErrorResponse'
           description: Forbidden
+        '404':
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/APIErrorResponse'
+          description: Not Found
         '429':
           $ref: '#/components/responses/TooManyRequestsResponse'
       security:
diff --git a/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-AWS-CUR-config-returns-Not-Found-response.frozen b/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-AWS-CUR-config-returns-Not-Found-response.frozen
new file mode 100644
index 000000000000..a2e736103dbd
--- /dev/null
+++ b/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-AWS-CUR-config-returns-Not-Found-response.frozen
@@ -0,0 +1 @@
+2025-08-25T15:10:14.494Z
\ No newline at end of file
diff --git a/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-AWS-CUR-config-returns-Not-Found-response.yml b/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-AWS-CUR-config-returns-Not-Found-response.yml
new file mode 100644
index 000000000000..aab5c15b8b30
--- /dev/null
+++ b/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-AWS-CUR-config-returns-Not-Found-response.yml
@@ -0,0 +1,25 @@
+http_interactions:
+- recorded_at: Mon, 25 Aug 2025 15:10:14 GMT
+  request:
+    body:
+      encoding: UTF-8
+      string: '{"data":{"attributes":{"is_enabled":true},"type":"aws_cur_config_patch_request"}}'
+    headers:
+      Accept:
+      - application/json
+      Content-Type:
+      - application/json
+    method: PATCH
+    uri: https://api.datadoghq.com/api/v2/cost/aws_cur_config/12345678
+  response:
+    body:
+      encoding: UTF-8
+      string: '{"errors":[{"status":"404","title":"Cloud account not found","detail":"Cloud
+        account with ID 12345678 was not found"}]}'
+    headers:
+      Content-Type:
+      - application/vnd.api+json
+    status:
+      code: 404
+      message: Not Found
+recorded_with: VCR 6.0.0
diff --git a/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-Azure-config-returns-Not-Found-response.frozen b/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-Azure-config-returns-Not-Found-response.frozen
new file mode 100644
index 000000000000..de3073eebf33
--- /dev/null
+++ b/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-Azure-config-returns-Not-Found-response.frozen
@@ -0,0 +1 @@
+2025-08-25T15:10:28.926Z
\ No newline at end of file
diff --git a/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-Azure-config-returns-Not-Found-response.yml b/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-Azure-config-returns-Not-Found-response.yml
new file mode 100644
index 000000000000..b7122e65aa19
--- /dev/null
+++ b/cassettes/features/v2/cloud_cost_management/Update-Cloud-Cost-Management-Azure-config-returns-Not-Found-response.yml
@@ -0,0 +1,25 @@
+http_interactions:
+- recorded_at: Mon, 25 Aug 2025 15:10:28 GMT
+  request:
+    body:
+      encoding: UTF-8
+      string: '{"data":{"attributes":{"is_enabled":true},"type":"azure_uc_config_patch_request"}}'
+    headers:
+      Accept:
+      - application/json
+      Content-Type:
+      - application/json
+    method: PATCH
+    uri: https://api.datadoghq.com/api/v2/cost/azure_uc_config/12345678
+  response:
+    body:
+      encoding: UTF-8
+      string: '{"errors":[{"status":"404","title":"Cloud account not found","detail":"Cloud
+        account with ID 12345678 was not found"}]}'
+    headers:
+      Content-Type:
+      - application/vnd.api+json
+    status:
+      code: 404
+      message: Not Found
+recorded_with: VCR 6.0.0
diff --git a/features/v2/cloud_cost_management.feature b/features/v2/cloud_cost_management.feature
index 300d7094f799..eed19e63a9be 100644
--- a/features/v2/cloud_cost_management.feature
+++ b/features/v2/cloud_cost_management.feature
@@ -267,6 +267,14 @@ Feature: Cloud Cost Management
     When the request is sent
     Then the response status is 200 OK
 
+  @team:Datadog/cloud-cost-management
+  Scenario: Update Cloud Cost Management AWS CUR config returns "Not Found" response
+    Given new "UpdateCostAWSCURConfig" request
+    And request contains "cloud_account_id" parameter with value 12345678
+    And body with value {"data": {"attributes": {"is_enabled": true}, "type": "aws_cur_config_patch_request"}}
+    When the request is sent
+    Then the response status is 404 Not Found
+
   @replay-only @team:Datadog/cloud-cost-management
   Scenario: Update Cloud Cost Management AWS CUR config returns "OK" response
     Given new "UpdateCostAWSCURConfig" request
@@ -284,6 +292,14 @@ Feature: Cloud Cost Management
     When the request is sent
     Then the response status is 400 Bad Request
 
+  @team:Datadog/cloud-cost-management
+  Scenario: Update Cloud Cost Management Azure config returns "Not Found" response
+    Given new "UpdateCostAzureUCConfigs" request
+    And request contains "cloud_account_id" parameter with value 12345678
+    And body with value {"data": {"attributes": {"is_enabled": true}, "type": "azure_uc_config_patch_request"}}
+    When the request is sent
+    Then the response status is 404 Not Found
+
   @replay-only @team:Datadog/cloud-cost-management
   Scenario: Update Cloud Cost Management Azure config returns "OK" response
     Given new "UpdateCostAzureUCConfigs" request