Automate Task Extraction from Gmail to Supabase with ChatGPT-4

This n8n workflow automates the extraction of actionable tasks from unread Gmail messages using ChatGPT-4, storing the task metadata in Supabase, and preventing duplicate processing.

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This workflow is designed for professionals who want to streamline their task management by automatically extracting tasks from emails. It checks for unread emails in Gmail, processes them with ChatGPT-4 to extract task details, and stores the results in Supabase. The workflow ensures that each email is processed only once, saving API credits and avoiding duplicate entries.

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Last updated October 3, 2026
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How to import this workflow into n8n

  1. 1Purchase or download the workflow to get the n8n workflow JSON file.
  2. 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
  3. 3Open each node marked with a credential warning and connect your own accounts and API keys.
  4. 4Run the workflow once manually to verify the data flow, then toggle it to Active.

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