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HighLevel and Slack integration

Save yourself the work of writing custom integrations for HighLevel and Slack and use n8n instead. Build adaptable and scalable Marketing, Sales, workflows that work with your technology stack. All within a building experience you will love.

How to connect HighLevel and Slack

Create a new workflow and add the first step

In n8n, click the "Add workflow" button in the Workflows tab to create a new workflow. Add the starting point – a trigger on when your workflow should run: an app event, a schedule, a webhook call, another workflow, an AI chat, or a manual trigger. Sometimes, the HTTP Request node might already serve as your starting point.

HighLevel and Slack integration: Create a new workflow and add the first step

Automated sales follow-up system using HighLevel, Gmail, Slack & Google Sheets

πŸ“˜ 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 β€” helping sales teams maintain engagement, respond promptly, and improve lead conversion. βš™οΈ What This Workflow Does (Step-by-Step) 🟒 Manual Trigger – Starts the automation manually Action: Initiates the workflow for immediate follow-up execution or testing. πŸ“¦ Fetch Contacts from HighLevel CRM Action: Retrieves all contacts from HighLevel, including names, emails, and metadata for full visibility. πŸ” Validate Deal Fetch Success (IF Node) Action: Verifies that fetched contacts contain valid IDs. βœ… 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. πŸ“Š Get Most Recent Contact Action: Retrieves the latest contact based on last updated time and calculates hours since last interaction. πŸ“§ 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. πŸ“¨ Retrieve Email Thread for Response Action: Fetches the most recent Gmail thread using the thread ID to check if the contact has replied. βœ… Check If Contact Responded with β€œYes” (IF Node) Action: Evaluates if the response contains the word β€œyes”. βœ… True Path: Triggers Slack notification for positive response. ❌ False Path: Triggers Slack notification for no response. πŸ’¬ 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 πŸ’‘ Key Benefits βœ… Fully automated follow-up workflow for sales contacts βœ… Timely notifications for positive and inactive responses βœ… Personalized emails to contacts βœ… Transparent tracking and logging of errors βœ… Seamless integration across HighLevel, Gmail, Slack, and Google Sheets πŸ‘₯ 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

Build your own HighLevel and Slack integration

Create custom HighLevel and Slack workflows by choosing triggers and actions. Nodes come with global operations and settings, as well as app-specific parameters that can be configured. You can also use the HTTP Request node to query data from any app or service with a REST API.

HighLevel supported actions

Slack supported actions

HighLevel and Slack integration details

HighLevel

HighLevel

HighLevel is a comprehensive sales and marketing platform that can offer agencies everything they need, from generating new leads, creating read-to-use websites, to preparing forms and surveys and much more options and features.

Slack

Slack

Slack is a powerful collaboration tool for businesses of all sizes. It brings team communication and collaboration into one place so you can get more work done, whether you belong to a large enterprise or a small business.

Supercharge your CRM

Need a more powerful integration with your CRM? n8n lets you go beyond standard integrations offered by popular CRMs!

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Automate lead management

Using too many marketing tools? n8n lets you orchestrate all your apps into one cohesive, automated workflow.

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FAQ about HighLevel integrations

Need help setting up your HighLevel and Slack integration?

Discover our latest community's recommendations and join the discussions about HighLevel and Slack integration.

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    HighLevel OAuth2 Credentials does not appear on Docker version of n8n

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    GHL’s Update Contact node keeps giving an error without more information on the error reason This works successfully when updating the default fields, but it starts failing when working with β€˜Custom Fields’ Does any…

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    Jorge Rodriguez

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Why use n8n to integrate HighLevel with Slack

Handle branching, merging and iteration easily. Pause your workflow to wait for external events.

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