n8n AI Email Assistant: Prioritize Gmail with ChatGPT Summaries and Slack Digests

This n8n workflow automates the process of prioritizing and summarizing important emails, delivering a concise daily digest to a Slack channel. It leverages AI to understand email content, filters for high-priority messages, and helps you stay on top of your inbox without manual effort.

What it does

This workflow streamlines email management by:

1. Triggering on a Schedule: The workflow runs daily at a specified time (e.g., 7 AM) to process emails.
2. Fetching Recent Emails: It connects to your Gmail account to retrieve emails from the last 24 hours.
3. Filtering for Important Emails: It identifies emails marked as "Important" in your Gmail inbox.
4. Summarizing Emails with AI: For each important email, it uses OpenAI's capabilities to generate a concise summary of the email's content.
5. Creating a Daily Digest: It compiles a digest of these summarized important emails.
6. Posting to Slack: The compiled digest is then posted to a designated Slack channel, providing a quick overview of critical communications.

Prerequisites/Requirements

To use this workflow, you will need:

• n8n Instance: A running n8n instance.
• Gmail Account: A Gmail account with appropriate credentials configured in n8n.
• OpenAI API Key: An OpenAI API key configured as a credential in n8n. This is used for generating email summaries.
• Slack Account: A Slack account with a workspace and a channel where the digests will be posted. A Slack credential must be configured in n8n.
• Google Sheets (Optional): While a Google Sheets node is present in the workflow, it is currently disconnected and not actively used in the described flow. If you intend to use it for logging or other purposes, a Google Sheets credential would be required.

Setup/Usage

1. Import the Workflow:
   • Download the provided JSON workflow.
   • In your n8n instance, go to "Workflows" and click "New".
   • Click the "Import from JSON" button and paste the workflow JSON or upload the file.
2. Configure Credentials:
   • Gmail: Locate the "Gmail Trigger" node and the "Gmail" node. Configure your Gmail OAuth2 credentials. Ensure the necessary scopes for reading emails are granted.
   • OpenAI: Locate the "OpenAI" node. Configure your OpenAI API key credential.
   • Slack: Locate the "Slack" node. Configure your Slack API token credential.
3. Customize Nodes:
   • Schedule Trigger: The "Schedule Trigger" node is configured to run daily. Adjust the "Mode" and "Time" settings if you prefer a different schedule.
   • Gmail Trigger: Ensure the "Resource" is set to "Email" and the "Operation" to "Get All". You might want to adjust the "Limit" or "New Emails From" options.
   • If: The "If" node currently checks if data.labelIds contains 'IMPORTANT'. You can modify this condition to filter emails based on other criteria (e.g., sender, subject, keywords).
   • OpenAI: Review the prompt used for summarizing emails in the "OpenAI" node. You can refine it to get summaries in a specific format or with particular details.
   • Code: The "Code" node is responsible for formatting the digest. You can modify the JavaScript code to change how the email summaries are presented in the Slack message.
   • Slack: In the "Slack" node, specify the Channel where you want the email digests to be posted.
4. Activate the Workflow: Once all credentials are set up and customizations are complete, activate the workflow by toggling the "Active" switch in the top right corner of the workflow editor.

The workflow will now run on its schedule, process your important emails, summarize them with AI, and send a digest to your Slack channel.