Create a Google Workspace target connection

You use a Google service account to connect to your target Google Workspace domain. You set up the target connection in the Google Workspace Migrate platform. 

Before you begin 

  • You don't have to create a new service account. You can use the service account that you set up earlier. Follow the steps below if you want to create a new service account. 
  • Use a Google Cloud Console project belonging to either the source or target environment, depending on how you want to manage your API usage and quotas.
  • You can create the new service account in a different Cloud Console project. If you do, first enable the APIs in the new project. Go to Enable APIs

Steps to set up a target connection

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Step 1: Create the service account (Optional)
  1. In the Google Cloud Console, click IAM & Adminand thenService Accounts. You might have to click Menu "" first.
  2. Click Create Service Account.
  3. In the Service account name field, enter a name.

    The service account ID is completed automatically.

  4. (Optional) In the Service account description field, enter a description of the service account.
  5. Click Create.
  6. Service account permissions are not required for Google Workspace Migrate. Click Continue to skip this step.
  7. User permissions are not required for Google Workspace Migrate. Click Done to skip this step.
  8. Under Service Accounts, select the email address of the service account you created.
  9. Click Keysand thenAdd Keyand thenCreate new key.
  10. Make sure the key type is set to JSON and click Create.

    You'll get a message that the service account JSON key file has been created and downloaded to your computer. Make a note of the name of this file because you’ll need it later.

  11. Click Close.

What happens next? 

Service accounts can take up to 24 hours to propagate through large domains. If you lose the key, repeat these steps to create a new one.

Step 2: Authorize the service account

Next, authorize the service account in the Google Admin console for your target domain. You must complete this step even if you are reusing a service account. 

  1. Sign in to your Google Admin console.

    Sign in using an account with super administrator privileges (does not end in

  2. From the Admin console Home page, go to Menu ""and thenSecurityand thenAPI controls.
  3. Under Domain wide delegation, click Manage Domain Wide Delegation.
  4. On the Manage domain wide delegation page, click Add new.
  5. Under Client ID, enter your service account's client ID.

    You can find the service account client ID in the JSON file you downloaded when you created the service account. Alternatively, you can find the client ID (also known as the Unique ID) in the Google Cloud Console. Click IAM & Adminand thenService accounts, then select your service account.

  6. In the OAuth scopes field, copy and paste the following scopes:,,,,,,,,,,,,,,,,,,,,,

  7. Click Authorize.
  8. To make sure every scope appears, select the new client ID and click View details.

    If they don't, click Edit, enter the missing scopes, and click Authorize. Note that you can't edit the client ID.

  9. Go back to the Google Cloud Console and click Save.


You might see the following error: Client is not authorized to retrieve access tokens using this method, or client not authorized for any of the scopes requested.

To troubleshoot: 

  • Repeat step 2 (Authorize the service account) above. 
  • Make sure you're using the correct client ID. Open the JSON file in a text editor to verify the client IDs match. 
  • If you still see the error, you might need to wait for the authorization process to finish. It usually takes a few minutes, but can take up to 24 hours.
Step 3: Set up the target connection
  1. In the Google Workspace Migrate platform, click Newand thenConnection
  2. Enter a connection name. 
  3. Under Type, select Google Workspace.
  4. Under Admin email, enter the email address of a super administrator for your target Google Workspace domain. 
  5. Under Account, click Add new account.
  6. Under Service certificate, click Upload file, navigate to the downloaded JSON private key, and click Open. Or, drag the JSON file to the box.
  7. Click Create.

Next step

Plan your migration phases

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