This is the email id generated when setting up Google Service Account credentials. For more information, see the following: Google Service Account Authentication To authenticate to BigQuery using Google Service Account credentials, enter the Google Service Account email and enter the location of the Google Service Account private key file. If you do not have a google service account email and private key file, you can create one using the Google API console. The following link should take you to Google's service accounts page: https://console.developers.google.com/permissions/serviceaccounts The creation process will generate a Google Service Account email id to be used for the authentication id, and it will generate a private key file that will be stored on your machine. RazorSQL needs to know the email id and location of the private key file to authenticate to BigQuery using the service account authentication option. Examples of a Google Service Account email and private key file are the following: Service Account Email: exampleacct@bigqueryproject-201618.iam.gserviceaccount.com Private Key File Path: C:\Users\johndoe\Desktop\bigqueryproject-abcde.json