diff --git a/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/__init__.py b/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/__init__.py
index d9d26c564598..e85a2cba0ef4 100644
--- a/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/__init__.py
+++ b/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/__init__.py
@@ -123,8 +123,8 @@
     IPAction,
     SkuName,
     SkuTier,
-    KeySource,
     IdentityType,
+    KeySource,
     PrivateLinkConnectionStatus,
     EndPointProvisioningState,
     NetworkRuleIPAction,
@@ -205,8 +205,8 @@
     'IPAction',
     'SkuName',
     'SkuTier',
-    'KeySource',
     'IdentityType',
+    'KeySource',
     'PrivateLinkConnectionStatus',
     'EndPointProvisioningState',
     'NetworkRuleIPAction',
diff --git a/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_models.py b/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_models.py
index 15d01822351f..ab521a85d3cb 100644
--- a/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_models.py
+++ b/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_models.py
@@ -1352,6 +1352,8 @@ class SBNamespace(TrackedResource):
     :type tags: dict[str, str]
     :param sku: Properties of SKU
     :type sku: ~azure.mgmt.servicebus.models.SBSku
+    :param identity: Properties of BYOK Identity description
+    :type identity: ~azure.mgmt.servicebus.models.Identity
     :ivar provisioning_state: Provisioning state of the namespace.
     :vartype provisioning_state: str
     :ivar created_at: The time the namespace was created
@@ -1389,6 +1391,7 @@ class SBNamespace(TrackedResource):
         'location': {'key': 'location', 'type': 'str'},
         'tags': {'key': 'tags', 'type': '{str}'},
         'sku': {'key': 'sku', 'type': 'SBSku'},
+        'identity': {'key': 'identity', 'type': 'Identity'},
         'provisioning_state': {'key': 'properties.provisioningState', 'type': 'str'},
         'created_at': {'key': 'properties.createdAt', 'type': 'iso-8601'},
         'updated_at': {'key': 'properties.updatedAt', 'type': 'iso-8601'},
@@ -1401,6 +1404,7 @@ class SBNamespace(TrackedResource):
     def __init__(self, **kwargs):
         super(SBNamespace, self).__init__(**kwargs)
         self.sku = kwargs.get('sku', None)
+        self.identity = kwargs.get('identity', None)
         self.provisioning_state = None
         self.created_at = None
         self.updated_at = None
diff --git a/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_models_py3.py b/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_models_py3.py
index a5841376faec..f6296491e2fb 100644
--- a/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_models_py3.py
+++ b/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_models_py3.py
@@ -1352,6 +1352,8 @@ class SBNamespace(TrackedResource):
     :type tags: dict[str, str]
     :param sku: Properties of SKU
     :type sku: ~azure.mgmt.servicebus.models.SBSku
+    :param identity: Properties of BYOK Identity description
+    :type identity: ~azure.mgmt.servicebus.models.Identity
     :ivar provisioning_state: Provisioning state of the namespace.
     :vartype provisioning_state: str
     :ivar created_at: The time the namespace was created
@@ -1389,6 +1391,7 @@ class SBNamespace(TrackedResource):
         'location': {'key': 'location', 'type': 'str'},
         'tags': {'key': 'tags', 'type': '{str}'},
         'sku': {'key': 'sku', 'type': 'SBSku'},
+        'identity': {'key': 'identity', 'type': 'Identity'},
         'provisioning_state': {'key': 'properties.provisioningState', 'type': 'str'},
         'created_at': {'key': 'properties.createdAt', 'type': 'iso-8601'},
         'updated_at': {'key': 'properties.updatedAt', 'type': 'iso-8601'},
@@ -1398,9 +1401,10 @@ class SBNamespace(TrackedResource):
         'encryption': {'key': 'properties.encryption', 'type': 'Encryption'},
     }
 
-    def __init__(self, *, location: str, tags=None, sku=None, zone_redundant: bool=None, encryption=None, **kwargs) -> None:
+    def __init__(self, *, location: str, tags=None, sku=None, identity=None, zone_redundant: bool=None, encryption=None, **kwargs) -> None:
         super(SBNamespace, self).__init__(location=location, tags=tags, **kwargs)
         self.sku = sku
+        self.identity = identity
         self.provisioning_state = None
         self.created_at = None
         self.updated_at = None
diff --git a/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_service_bus_management_client_enums.py b/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_service_bus_management_client_enums.py
index 063448efd5fd..65f10f467ed5 100644
--- a/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_service_bus_management_client_enums.py
+++ b/sdk/servicebus/azure-mgmt-servicebus/azure/mgmt/servicebus/models/_service_bus_management_client_enums.py
@@ -32,14 +32,14 @@ class SkuTier(str, Enum):
     premium = "Premium"
 
 
-class KeySource(str, Enum):
+class IdentityType(str, Enum):
 
-    microsoft_key_vault = "Microsoft.KeyVault"
+    system_assigned = "SystemAssigned"
 
 
-class IdentityType(str, Enum):
+class KeySource(str, Enum):
 
-    system_assigned = "SystemAssigned"
+    microsoft_key_vault = "Microsoft.KeyVault"
 
 
 class PrivateLinkConnectionStatus(str, Enum):