diff --git a/openmetadata-ui/src/main/resources/ui/src/generated/api/events/createNotificationTemplate.ts b/openmetadata-ui/src/main/resources/ui/src/generated/api/events/createNotificationTemplate.ts
index bb6f8e4176c..f58c6748ac9 100644
--- a/openmetadata-ui/src/main/resources/ui/src/generated/api/events/createNotificationTemplate.ts
+++ b/openmetadata-ui/src/main/resources/ui/src/generated/api/events/createNotificationTemplate.ts
@@ -39,6 +39,10 @@ export interface CreateNotificationTemplate {
      * Handlebars template content for rendering notifications
      */
     templateBody: string;
+    /**
+     * Handlebars template for notification subject line
+     */
+    templateSubject: string;
 }
 
 /**
diff --git a/openmetadata-ui/src/main/resources/ui/src/generated/api/events/notificationTemplateValidationRequest.ts b/openmetadata-ui/src/main/resources/ui/src/generated/api/events/notificationTemplateValidationRequest.ts
new file mode 100644
index 00000000000..8e1f8fa4510
--- /dev/null
+++ b/openmetadata-ui/src/main/resources/ui/src/generated/api/events/notificationTemplateValidationRequest.ts
@@ -0,0 +1,25 @@
+/*
+ *  Copyright 2025 Collate.
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * Request to validate a notification template
+ */
+export interface NotificationTemplateValidationRequest {
+    /**
+     * The template body to validate
+     */
+    templateBody: string;
+    /**
+     * The template subject line to validate
+     */
+    templateSubject: string;
+}
diff --git a/openmetadata-ui/src/main/resources/ui/src/generated/api/events/notificationTemplateValidationResponse.ts b/openmetadata-ui/src/main/resources/ui/src/generated/api/events/notificationTemplateValidationResponse.ts
new file mode 100644
index 00000000000..02286bb0e68
--- /dev/null
+++ b/openmetadata-ui/src/main/resources/ui/src/generated/api/events/notificationTemplateValidationResponse.ts
@@ -0,0 +1,43 @@
+/*
+ *  Copyright 2025 Collate.
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * Response from notification template validation
+ */
+export interface NotificationTemplateValidationResponse {
+    /**
+     * Validation result for template body
+     */
+    templateBody?: FieldValidation;
+    /**
+     * Validation result for template subject
+     */
+    templateSubject?: FieldValidation;
+}
+
+/**
+ * Validation result for template body
+ *
+ * Validation result for a template field
+ *
+ * Validation result for template subject
+ */
+export interface FieldValidation {
+    /**
+     * Error message if validation failed
+     */
+    error?: string;
+    /**
+     * Whether the field validation passed
+     */
+    passed: boolean;
+}
diff --git a/openmetadata-ui/src/main/resources/ui/src/generated/entity/data/spreadsheet.ts b/openmetadata-ui/src/main/resources/ui/src/generated/entity/data/spreadsheet.ts
index e6270e5e4e6..ef3310a5e05 100644
--- a/openmetadata-ui/src/main/resources/ui/src/generated/entity/data/spreadsheet.ts
+++ b/openmetadata-ui/src/main/resources/ui/src/generated/entity/data/spreadsheet.ts
@@ -409,6 +409,7 @@ export enum EntityStatus {
     Draft = "Draft",
     InReview = "In Review",
     Rejected = "Rejected",
+    Unprocessed = "Unprocessed",
 }
 
 /**
diff --git a/openmetadata-ui/src/main/resources/ui/src/generated/entity/events/notificationTemplate.ts b/openmetadata-ui/src/main/resources/ui/src/generated/entity/events/notificationTemplate.ts
index 2d1d73ae653..2df4357814f 100644
--- a/openmetadata-ui/src/main/resources/ui/src/generated/entity/events/notificationTemplate.ts
+++ b/openmetadata-ui/src/main/resources/ui/src/generated/entity/events/notificationTemplate.ts
@@ -19,6 +19,11 @@ export interface NotificationTemplate {
      * Change that lead to this version of the template.
      */
     changeDescription?: ChangeDescription;
+    /**
+     * Checksum of the default template to detect if updates are available. Only applicable to
+     * system templates.
+     */
+    defaultTemplateChecksum?: string;
     /**
      * When `true` indicates the template has been soft deleted.
      */
@@ -47,6 +52,11 @@ export interface NotificationTemplate {
      * Change that lead to this version of the entity.
      */
     incrementalChangeDescription?: ChangeDescription;
+    /**
+     * Indicates if this system template has been modified from its default version. Only
+     * applicable to system templates.
+     */
+    isModifiedFromDefault?: boolean;
     /**
      * Name for the notification template (e.g., 'Default Table Template', 'Custom Pipeline
      * Alerts').
@@ -61,6 +71,10 @@ export interface NotificationTemplate {
      * Handlebars HTML template body with placeholders.
      */
     templateBody: string;
+    /**
+     * Handlebars template for the email subject line with placeholders.
+     */
+    templateSubject?: string;
     /**
      * Last update time corresponding to the new version of the template.
      */