Book appointments and manage sales opportunities via webhooks in HighLevel
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 16 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects HighLevel.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Execute Slot Availability Check (Execute Sub-workflow): calls another n8n workflow
- Check Slot Availability (If): checks a condition and branches into true / false
- Set Slot Start & End Times (Edit Fields (Set)): sets 2 fields: start, end
- Handle Unavailable Slot (Edit Fields (Set)): sets 2 fields: booked, error
- Sync Contact in GHL (HighLevel): uses HighLevel
- Schedule Appointment in GHL (HighLevel): work with calendar
- Report Booking Error (Edit Fields (Set)): sets 2 fields: booked, error
- Execute Error Workflow (Execute Sub-workflow): calls another n8n workflow
- Find Opportunities in GHL (HighLevel): get many (opportunity)
- Verify Opportunity Existence (If): checks a condition and branches into true / false
…plus 5 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (6)
- Edit Fields (Set)
n8n-nodes-base.set - Execute Sub-workflow
n8n-nodes-base.executeWorkflow - Webhook
n8n-nodes-base.webhook - HighLevel
n8n-nodes-base.highLevel - HTTP Request
n8n-nodes-base.httpRequest - If
n8n-nodes-base.if
From the author
Quick overview This workflow receives appointment requests via webhook, checks slot availability, then creates/updates a contact & books a 30-minute appointment in GoHighLevel. It also creates/updates a related opportunity with custom fields and triggers…