diff --git a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/models/_models.py b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/models/_models.py
index 56521549ac6b..f26e13c45769 100644
--- a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/models/_models.py
+++ b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/models/_models.py
@@ -521,17 +521,22 @@ def __init__(self, **kwargs):
 class DeploymentValidateResult(Model):
     """Information from validate template deployment response.
 
+    :param error: The deployment validation error.
+    :type error:
+     ~azure.mgmt.resource.resources.v2019_07_01.models.ErrorResponse
     :param properties: The template deployment properties.
     :type properties:
      ~azure.mgmt.resource.resources.v2019_07_01.models.DeploymentPropertiesExtended
     """
 
     _attribute_map = {
+        'error': {'key': 'error', 'type': 'ErrorResponse'},
         'properties': {'key': 'properties', 'type': 'DeploymentPropertiesExtended'},
     }
 
     def __init__(self, **kwargs):
         super(DeploymentValidateResult, self).__init__(**kwargs)
+        self.error = kwargs.get('error', None)
         self.properties = kwargs.get('properties', None)
 
 
diff --git a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/models/_models_py3.py b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/models/_models_py3.py
index 076d670f81a1..758d0b128981 100644
--- a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/models/_models_py3.py
+++ b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/models/_models_py3.py
@@ -521,17 +521,22 @@ def __init__(self, *, outputs=None, providers=None, dependencies=None, template=
 class DeploymentValidateResult(Model):
     """Information from validate template deployment response.
 
+    :param error: The deployment validation error.
+    :type error:
+     ~azure.mgmt.resource.resources.v2019_07_01.models.ErrorResponse
     :param properties: The template deployment properties.
     :type properties:
      ~azure.mgmt.resource.resources.v2019_07_01.models.DeploymentPropertiesExtended
     """
 
     _attribute_map = {
+        'error': {'key': 'error', 'type': 'ErrorResponse'},
         'properties': {'key': 'properties', 'type': 'DeploymentPropertiesExtended'},
     }
 
-    def __init__(self, *, properties=None, **kwargs) -> None:
+    def __init__(self, *, error=None, properties=None, **kwargs) -> None:
         super(DeploymentValidateResult, self).__init__(**kwargs)
+        self.error = error
         self.properties = properties
 
 
diff --git a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/operations/_deployments_operations.py b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/operations/_deployments_operations.py
index d8d055ac362c..c27b3e5df653 100644
--- a/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/operations/_deployments_operations.py
+++ b/sdk/resources/azure-mgmt-resource/azure/mgmt/resource/resources/v2019_07_01/operations/_deployments_operations.py
@@ -470,7 +470,7 @@ def validate_at_scope(
         request = self._client.post(url, query_parameters, header_parameters, body_content)
         response = self._client.send(request, stream=False, **operation_config)
 
-        if response.status_code not in [200]:
+        if response.status_code not in [200, 400]:
             exp = CloudError(response)
             exp.request_id = response.headers.get('x-ms-request-id')
             raise exp
@@ -478,6 +478,8 @@ def validate_at_scope(
         deserialized = None
         if response.status_code == 200:
             deserialized = self._deserialize('DeploymentValidateResult', response)
+        if response.status_code == 400:
+            deserialized = self._deserialize('DeploymentValidateResult', response)
 
         if raw:
             client_raw_response = ClientRawResponse(deserialized, response)
@@ -1034,7 +1036,7 @@ def validate_at_tenant_scope(
         request = self._client.post(url, query_parameters, header_parameters, body_content)
         response = self._client.send(request, stream=False, **operation_config)
 
-        if response.status_code not in [200]:
+        if response.status_code not in [200, 400]:
             exp = CloudError(response)
             exp.request_id = response.headers.get('x-ms-request-id')
             raise exp
@@ -1042,6 +1044,8 @@ def validate_at_tenant_scope(
         deserialized = None
         if response.status_code == 200:
             deserialized = self._deserialize('DeploymentValidateResult', response)
+        if response.status_code == 400:
+            deserialized = self._deserialize('DeploymentValidateResult', response)
 
         if raw:
             client_raw_response = ClientRawResponse(deserialized, response)
@@ -1609,7 +1613,7 @@ def validate_at_management_group_scope(
         request = self._client.post(url, query_parameters, header_parameters, body_content)
         response = self._client.send(request, stream=False, **operation_config)
 
-        if response.status_code not in [200]:
+        if response.status_code not in [200, 400]:
             exp = CloudError(response)
             exp.request_id = response.headers.get('x-ms-request-id')
             raise exp
@@ -1617,6 +1621,8 @@ def validate_at_management_group_scope(
         deserialized = None
         if response.status_code == 200:
             deserialized = self._deserialize('DeploymentValidateResult', response)
+        if response.status_code == 400:
+            deserialized = self._deserialize('DeploymentValidateResult', response)
 
         if raw:
             client_raw_response = ClientRawResponse(deserialized, response)
@@ -2179,7 +2185,7 @@ def validate_at_subscription_scope(
         request = self._client.post(url, query_parameters, header_parameters, body_content)
         response = self._client.send(request, stream=False, **operation_config)
 
-        if response.status_code not in [200]:
+        if response.status_code not in [200, 400]:
             exp = CloudError(response)
             exp.request_id = response.headers.get('x-ms-request-id')
             raise exp
@@ -2187,6 +2193,8 @@ def validate_at_subscription_scope(
         deserialized = None
         if response.status_code == 200:
             deserialized = self._deserialize('DeploymentValidateResult', response)
+        if response.status_code == 400:
+            deserialized = self._deserialize('DeploymentValidateResult', response)
 
         if raw:
             client_raw_response = ClientRawResponse(deserialized, response)
@@ -2773,7 +2781,7 @@ def validate(
         request = self._client.post(url, query_parameters, header_parameters, body_content)
         response = self._client.send(request, stream=False, **operation_config)
 
-        if response.status_code not in [200]:
+        if response.status_code not in [200, 400]:
             exp = CloudError(response)
             exp.request_id = response.headers.get('x-ms-request-id')
             raise exp
@@ -2781,6 +2789,8 @@ def validate(
         deserialized = None
         if response.status_code == 200:
             deserialized = self._deserialize('DeploymentValidateResult', response)
+        if response.status_code == 400:
+            deserialized = self._deserialize('DeploymentValidateResult', response)
 
         if raw:
             client_raw_response = ClientRawResponse(deserialized, response)