Merge pull request #196233 from Clare-Zheng82/0426-Add_Google_BigQuery_auth_scope

Add OAuth scope Note in Google BigQuery connector

Author: PRMerger3

articles/data-factory/connector-google-bigquery.md

@@ -8,7 +8,7 @@ ms.service: data-factory
 ms.subservice: data-movement
 ms.topic: conceptual
 ms.custom: synapse
-ms.date: 09/09/2021
+ms.date: 04/26/2022
 ---
 
 # Copy data from Google BigQuery using Azure Data Factory or Synapse Analytics
@@ -82,6 +82,8 @@ Set "authenticationType" property to **UserAuthentication**, and specify the fol
 | clientSecret | Secret of the application used to generate the refresh token. Mark this field as a SecureString to store it securely, or [reference a secret stored in Azure Key Vault](store-credentials-in-key-vault.md). | No |
 | refreshToken | The refresh token obtained from Google used to authorize access to BigQuery. Learn how to get one from [Obtaining OAuth 2.0 access tokens](https://developers.google.com/identity/protocols/OAuth2WebServer#obtainingaccesstokens) and [this community blog](https://jpd.ms/getting-your-bigquery-refresh-token-for-azure-datafactory-f884ff815a59). Mark this field as a SecureString to store it securely, or [reference a secret stored in Azure Key Vault](store-credentials-in-key-vault.md). | No |
 
+The minimum scope required to obtain an OAuth 2.0 refresh token is `https://www.googleapis.com/auth/bigquery.readonly`. If you plan to run a query that might return large results, other scope might be required. For more information, refer to this [article](https://cloud.google.com/bigquery/docs/writing-results#large-results). 
+
 **Example:**
 
 ```json