Automated Sales Follow-Up System Using HighLevel, Gmail, Slack & Google Sheets

📘 Description:

This workflow automates sales contact follow-ups and engagement tracking by integrating HighLevel CRM, Gmail, Slack, and Google Sheets. It fetches all contacts from HighLevel, filters inactive contacts, sends personalized follow-up emails, checks for responses, and notifies the sales team accordingly.
It eliminates manual follow-up tracking, ensures timely outreach, and provides real-time notifications — helping sales teams maintain engagement, respond promptly, and improve lead conversion.

⚙️ What This Workflow Does (Step-by-Step)

🟢 Manual Trigger – Starts the automation manually
Action: Initiates the workflow for immediate follow-up execution or testing.

📦 Fetch Contacts from HighLevel CRM
Action: Retrieves all contacts from HighLevel, including names, emails, and metadata for full visibility.

🔍 Validate Deal Fetch Success (IF Node)
Action: Verifies that fetched contacts contain valid IDs.

✅ True Path: Continues to filter inactive contacts.

❌ False Path: Logs invalid or missing contacts to Google Sheets for auditing and troubleshooting.

🧹 Filter Contacts with No Response
Action: Selects contacts who have not replied in the last 24 hours, ensuring follow-ups target only inactive leads.

📊 Get Most Recent Contact
Action: Retrieves the latest contact based on last updated time and calculates hours since last interaction.

📧 Send Follow-Up Email to Contact
Action: Sends a personalized email to the contact, asking for confirmation or questions and including dynamic details like name and last interaction time.

⏳ Wait for 24 Hours Before Next Action
Action: Pauses the workflow for 24 hours to allow contacts sufficient time to respond.

📨 Retrieve Email Thread for Response
Action: Fetches the most recent Gmail thread using the thread ID to check if the contact has replied.

✅ Check If Contact Responded with “Yes” (IF Node)
Action: Evaluates if the response contains the word “yes”.

✅ True Path: Triggers Slack notification for positive response.

❌ False Path: Triggers Slack notification for no response.

💬 Notify Sales Team in Slack if Response Received
Action: Sends a Slack message notifying the team of a positive reply, including contact details and response snippet.

⚠️ Notify Sales Team in Slack if No Response
Action: Sends a Slack message notifying the team that the contact hasn’t replied, including contact info, follow-up timestamp, and waiting status.

🚨 Log Fetch or Validation Errors (Error Handling)
Action: Records any fetch or validation errors in Google Sheets for easy review and troubleshooting.

🧩 Prerequisites

HighLevel CRM API OAuth credentials
Gmail OAuth2 credentials for sending and fetching emails
Google Sheets document for error logging
Slack API credentials for notifications

💡 Key Benefits

✅ Fully automated follow-up workflow for sales contacts
✅ Timely notifications for positive and inactive responses
✅ Personalized emails to contacts
✅ Transparent tracking and logging of errors
✅ Seamless integration across HighLevel, Gmail, Slack, and Google Sheets

👥 Perfect For

Sales teams managing multiple leads
Marketing teams ensuring lead engagement
Startups scaling outreach efforts
Organizations using HighLevel CRM + Gmail + Slack for sales follow-ups