Update device-update-control-access.md

Author: eshashah-msft

articles/iot-hub-device-update/device-update-control-access.md

@@ -29,7 +29,7 @@ A combination of roles can be used to provide the right level of access. For exa
 
 ## Configuring access for Azure Device Update service principal in the IoT Hub
 
-Device Update for IoT Hub communicates with the IoT Hub for deployments and manage updates at scale. In order to enable Device Update to do this, users need to set Contributor access for Azure Device Update Service Principal in the IoT Hub permissions. 
+Device Update for IoT Hub communicates with the IoT Hub for deployments and manage updates at scale. In order to enable Device Update to do this, users need to set IoT Hub Data Contributor Contributor access for Azure Device Update Service Principal in the IoT Hub permissions. 
 
 Below actions will be blocked, after 9/28/22, if these permissions are not set:
 * Create Deployment
@@ -39,7 +39,7 @@ Below actions will be blocked, after 9/28/22, if these permissions are not set:
 
 1. Go to the **IoT Hub** connected to your Device Update Instance. Click **Access Control(IAM)**
 2. Click **+ Add** -> **Add role assignment**
-3. Under Role tab, select **Contributor**
+3. Under Role tab, select **IoT Hub Data Contributor**
 4. Click **Next**. For **Assign access to**, select **User, group, or service principal**. Click **+ Select Members**, search for '**Azure Device Update**'
 5. Click **Next** -> **Review + Assign**