Automate Gmail Replies with OpenAI Assistant
This workflow leverages OpenAI Assistant to draft personalized replies for labeled email messages and connects the drafts directly to the relevant Gmail threads.
💡 Enhance reply customization by adding a knowledge base to your OpenAI Assistant, allowing it to respond with tailored information (e.g., providing product details for customer inquiries).
📺 Watch this workflow in action in my YouTube tutorial on Gmail automation.
How it Works
The workflow runs at set intervals (default: every 1 minute, adjustable) to check for emails with a specific label (e.g., "AI").
It retrieves labeled emails, forwards their content to the OpenAI Assistant, and generates a draft reply. The draft is formatted in HTML, converted to a raw RFC-compliant message, and connected to the original thread ID in Gmail.
💡 Learn more about composing Gmail drafts in Google's API documentation.
Finally, the trigger label (e.g., "AI") is removed from the email to prevent looping.
Setup Steps
- Set up credentials for Gmail and OpenAI.
- Create a label in Gmail for messages to be handled by this workflow (e.g., "AI").
- Select this label in the Gmail nodes in the workflow.
- Create and configure your OpenAI Assistant, selecting it in the "OpenAI Assistant" node.
- Optionally, adjust the trigger interval (default is 1 minute).
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