Google credentials

This section contains:

• OAuth2 single service: Create an OAuth2 credential for a specific service node, such as the Gmail node.
• OAuth2 generic: Create an OAuth2 credential for use with custom operations.
• Service Account: Create a Service Account credential for some specific service nodes.

OAuth2 and Service Account

There are two authentication methods available for Google services nodes:

• OAuth2: Recommended because it's more widely available and easier to set up.
• Service Account: Refer to the Google documentation: Understanding service accounts for guidance on when you need a service account.

Compatible nodes

Once configured, you can use your credentials to authenticate the following nodes. Most nodes are compatible with OAuth2 authentication. Support for Service Account authentication is limited.

Node	OAuth	Service Account
Google Ads	✅	❌
Gmail	✅	⚠️
Google Analytics	✅	❌
Google BigQuery	✅	✅
Google Books	✅	✅
Google Calendar	✅	❌
Google Chat	❌	✅
Google Cloud Storage	✅	❌
Google Contacts	✅	❌
Google Cloud Firestore	✅	✅
Google Cloud Natural Language	✅	❌
Google Cloud Realtime Database	✅	❌
Google Docs	✅	✅
Google Drive	✅	✅
Google Drive Trigger	✅	✅
Google Perspective	✅	❌
Google Sheets	✅	✅
Google Slides	✅	✅
Google Tasks	✅	❌
Google Translate	✅	✅
Google Workspace Admin	✅	❌
YouTube	✅	❌

Gmail and Service Accounts

Google technically supports Service Accounts for use with Gmail, but it requires enabling domain-wide delegation, which Google discourages, and its behavior can be inconsistent.

Otera recommends using OAuth2 with the Gmail node.