diff --git a/azure-mgmt-datafactory/azure/mgmt/datafactory/models/__init__.py b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/__init__.py
index 96700c048a45..144d6e2998ae 100644
--- a/azure-mgmt-datafactory/azure/mgmt/datafactory/models/__init__.py
+++ b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/__init__.py
@@ -306,6 +306,7 @@
     from .custom_activity_py3 import CustomActivity
     from .ssis_property_override_py3 import SSISPropertyOverride
     from .ssis_execution_parameter_py3 import SSISExecutionParameter
+    from .ssis_execution_credential_py3 import SSISExecutionCredential
     from .ssis_package_location_py3 import SSISPackageLocation
     from .execute_ssis_package_activity_py3 import ExecuteSSISPackageActivity
     from .hd_insight_spark_activity_py3 import HDInsightSparkActivity
@@ -667,6 +668,7 @@
     from .custom_activity import CustomActivity
     from .ssis_property_override import SSISPropertyOverride
     from .ssis_execution_parameter import SSISExecutionParameter
+    from .ssis_execution_credential import SSISExecutionCredential
     from .ssis_package_location import SSISPackageLocation
     from .execute_ssis_package_activity import ExecuteSSISPackageActivity
     from .hd_insight_spark_activity import HDInsightSparkActivity
@@ -1099,6 +1101,7 @@
     'CustomActivity',
     'SSISPropertyOverride',
     'SSISExecutionParameter',
+    'SSISExecutionCredential',
     'SSISPackageLocation',
     'ExecuteSSISPackageActivity',
     'HDInsightSparkActivity',
diff --git a/azure-mgmt-datafactory/azure/mgmt/datafactory/models/execute_ssis_package_activity.py b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/execute_ssis_package_activity.py
index 3e5dc62320cb..150e8481f0df 100644
--- a/azure-mgmt-datafactory/azure/mgmt/datafactory/models/execute_ssis_package_activity.py
+++ b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/execute_ssis_package_activity.py
@@ -47,6 +47,9 @@ class ExecuteSSISPackageActivity(ExecutionActivity):
     :param environment_path: The environment path to execute the SSIS package.
      Type: string (or Expression with resultType string).
     :type environment_path: object
+    :param execution_credential: The package execution credential.
+    :type execution_credential: dict[str,
+     ~azure.mgmt.datafactory.models.SSISExecutionCredential]
     :param connect_via: Required. The integration runtime reference.
     :type connect_via:
      ~azure.mgmt.datafactory.models.IntegrationRuntimeReference
@@ -92,6 +95,7 @@ class ExecuteSSISPackageActivity(ExecutionActivity):
         'runtime': {'key': 'typeProperties.runtime', 'type': 'object'},
         'logging_level': {'key': 'typeProperties.loggingLevel', 'type': 'object'},
         'environment_path': {'key': 'typeProperties.environmentPath', 'type': 'object'},
+        'execution_credential': {'key': 'typeProperties.executionCredential', 'type': '{SSISExecutionCredential}'},
         'connect_via': {'key': 'typeProperties.connectVia', 'type': 'IntegrationRuntimeReference'},
         'project_parameters': {'key': 'typeProperties.projectParameters', 'type': '{SSISExecutionParameter}'},
         'package_parameters': {'key': 'typeProperties.packageParameters', 'type': '{SSISExecutionParameter}'},
@@ -106,6 +110,7 @@ def __init__(self, **kwargs):
         self.runtime = kwargs.get('runtime', None)
         self.logging_level = kwargs.get('logging_level', None)
         self.environment_path = kwargs.get('environment_path', None)
+        self.execution_credential = kwargs.get('execution_credential', None)
         self.connect_via = kwargs.get('connect_via', None)
         self.project_parameters = kwargs.get('project_parameters', None)
         self.package_parameters = kwargs.get('package_parameters', None)
diff --git a/azure-mgmt-datafactory/azure/mgmt/datafactory/models/execute_ssis_package_activity_py3.py b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/execute_ssis_package_activity_py3.py
index 0a716e8c9482..59d65046c96f 100644
--- a/azure-mgmt-datafactory/azure/mgmt/datafactory/models/execute_ssis_package_activity_py3.py
+++ b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/execute_ssis_package_activity_py3.py
@@ -47,6 +47,9 @@ class ExecuteSSISPackageActivity(ExecutionActivity):
     :param environment_path: The environment path to execute the SSIS package.
      Type: string (or Expression with resultType string).
     :type environment_path: object
+    :param execution_credential: The package execution credential.
+    :type execution_credential: dict[str,
+     ~azure.mgmt.datafactory.models.SSISExecutionCredential]
     :param connect_via: Required. The integration runtime reference.
     :type connect_via:
      ~azure.mgmt.datafactory.models.IntegrationRuntimeReference
@@ -92,6 +95,7 @@ class ExecuteSSISPackageActivity(ExecutionActivity):
         'runtime': {'key': 'typeProperties.runtime', 'type': 'object'},
         'logging_level': {'key': 'typeProperties.loggingLevel', 'type': 'object'},
         'environment_path': {'key': 'typeProperties.environmentPath', 'type': 'object'},
+        'execution_credential': {'key': 'typeProperties.executionCredential', 'type': '{SSISExecutionCredential}'},
         'connect_via': {'key': 'typeProperties.connectVia', 'type': 'IntegrationRuntimeReference'},
         'project_parameters': {'key': 'typeProperties.projectParameters', 'type': '{SSISExecutionParameter}'},
         'package_parameters': {'key': 'typeProperties.packageParameters', 'type': '{SSISExecutionParameter}'},
@@ -100,12 +104,13 @@ class ExecuteSSISPackageActivity(ExecutionActivity):
         'property_overrides': {'key': 'typeProperties.propertyOverrides', 'type': '{SSISPropertyOverride}'},
     }
 
-    def __init__(self, *, name: str, package_location, connect_via, additional_properties=None, description: str=None, depends_on=None, user_properties=None, linked_service_name=None, policy=None, runtime=None, logging_level=None, environment_path=None, project_parameters=None, package_parameters=None, project_connection_managers=None, package_connection_managers=None, property_overrides=None, **kwargs) -> None:
+    def __init__(self, *, name: str, package_location, connect_via, additional_properties=None, description: str=None, depends_on=None, user_properties=None, linked_service_name=None, policy=None, runtime=None, logging_level=None, environment_path=None, execution_credential=None, project_parameters=None, package_parameters=None, project_connection_managers=None, package_connection_managers=None, property_overrides=None, **kwargs) -> None:
         super(ExecuteSSISPackageActivity, self).__init__(additional_properties=additional_properties, name=name, description=description, depends_on=depends_on, user_properties=user_properties, linked_service_name=linked_service_name, policy=policy, **kwargs)
         self.package_location = package_location
         self.runtime = runtime
         self.logging_level = logging_level
         self.environment_path = environment_path
+        self.execution_credential = execution_credential
         self.connect_via = connect_via
         self.project_parameters = project_parameters
         self.package_parameters = package_parameters
diff --git a/azure-mgmt-datafactory/azure/mgmt/datafactory/models/ssis_execution_credential.py b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/ssis_execution_credential.py
new file mode 100644
index 000000000000..c090694416a9
--- /dev/null
+++ b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/ssis_execution_credential.py
@@ -0,0 +1,44 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for
+# license information.
+#
+# Code generated by Microsoft (R) AutoRest Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is
+# regenerated.
+# --------------------------------------------------------------------------
+
+from msrest.serialization import Model
+
+
+class SSISExecutionCredential(Model):
+    """SSIS package execution credential.
+
+    All required parameters must be populated in order to send to Azure.
+
+    :param domain: Required. Domain for windows authentication.
+    :type domain: object
+    :param user_name: Required. UseName for windows authentication.
+    :type user_name: object
+    :param password: Required. Password for windows authentication.
+    :type password: ~azure.mgmt.datafactory.models.SecureString
+    """
+
+    _validation = {
+        'domain': {'required': True},
+        'user_name': {'required': True},
+        'password': {'required': True},
+    }
+
+    _attribute_map = {
+        'domain': {'key': 'domain', 'type': 'object'},
+        'user_name': {'key': 'userName', 'type': 'object'},
+        'password': {'key': 'password', 'type': 'SecureString'},
+    }
+
+    def __init__(self, **kwargs):
+        super(SSISExecutionCredential, self).__init__(**kwargs)
+        self.domain = kwargs.get('domain', None)
+        self.user_name = kwargs.get('user_name', None)
+        self.password = kwargs.get('password', None)
diff --git a/azure-mgmt-datafactory/azure/mgmt/datafactory/models/ssis_execution_credential_py3.py b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/ssis_execution_credential_py3.py
new file mode 100644
index 000000000000..051eaffa2bf2
--- /dev/null
+++ b/azure-mgmt-datafactory/azure/mgmt/datafactory/models/ssis_execution_credential_py3.py
@@ -0,0 +1,44 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for
+# license information.
+#
+# Code generated by Microsoft (R) AutoRest Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is
+# regenerated.
+# --------------------------------------------------------------------------
+
+from msrest.serialization import Model
+
+
+class SSISExecutionCredential(Model):
+    """SSIS package execution credential.
+
+    All required parameters must be populated in order to send to Azure.
+
+    :param domain: Required. Domain for windows authentication.
+    :type domain: object
+    :param user_name: Required. UseName for windows authentication.
+    :type user_name: object
+    :param password: Required. Password for windows authentication.
+    :type password: ~azure.mgmt.datafactory.models.SecureString
+    """
+
+    _validation = {
+        'domain': {'required': True},
+        'user_name': {'required': True},
+        'password': {'required': True},
+    }
+
+    _attribute_map = {
+        'domain': {'key': 'domain', 'type': 'object'},
+        'user_name': {'key': 'userName', 'type': 'object'},
+        'password': {'key': 'password', 'type': 'SecureString'},
+    }
+
+    def __init__(self, *, domain, user_name, password, **kwargs) -> None:
+        super(SSISExecutionCredential, self).__init__(**kwargs)
+        self.domain = domain
+        self.user_name = user_name
+        self.password = password