I Built a n8n GoHighLevel Slack Integration That Follows Up With Leads Automatically

Shows how to build a GoHighLevel automation to re-engage cold contacts: retrieve contacts, send personalized Gmail follow-ups, wait 24 hours, check replies, run sentiment analysis, log results to Google Sheets, and alert sales through Slack.

– Triggers: manual execution or scheduled daily run (set timezone).
– Flow: get contacts → filter non-responders → send follow-up → wait 24h → retrieve thread.
– Logic: switch on “yes”, “no”, or “no response” and run sentiment/classification.
– Outputs: Slack notifications, Google Sheets logging, and optional GoHighLevel contact updates.

Quotes:

It sends a personalized email, waits 24 hours, then checks for a response.

Turn off Nan attribution — you don’t want ‘Sent by Nan’ in your emails.

Use sentiment analysis to see if leads are positive, neutral, or negative.