Automate installation booking approvals with Slack & Gmail forms

Ready for 3.0

by Chris Rudy ✓ · 229 views · created 2025-09-01 · Support Chatbot, Ticket Management

Ready 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 6 nodes and runs when someone submits an n8n form (“Installation Schedule Booking Form”). Along the way it connects Slack and Gmail.

How it runs

Trigger: When someone submits an n8n form (“Installation Schedule Booking Form”).

Set Fields: Configuration Variables (Edit Fields (Set)): sets 9 fields: CUSTOMER_NAME, CUSTOMER_EMAIL, CUSTOMER_PHONE…
Slack: send and wait for a reply
If: checks a condition and branches into true / false
Gmail: uses Gmail
Gmail: uses Gmail

Services it uses

Slack Gmail

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 (5)

n8n Form Triggern8n-nodes-base.formTrigger
Edit Fields (Set)n8n-nodes-base.set
Slackn8n-nodes-base.slack
Ifn8n-nodes-base.if
Gmailn8n-nodes-base.gmail

From the author

Who's it for Service businesses that handle installation appointments and need an efficient approval process. Perfect for HVAC companies, internet providers, appliance installers, or any business that requires team coordination before confirming customer…
Excerpt from Chris Rudy's description on n8n.io.

View the original on n8n.io → Check your own copy

Automate installation booking approvals with Slack & Gmail forms

What this workflow does

How it runs

Services it uses

Before you upgrade to n8n 3.0

Nodes used (5)

From the author

Get the weekly “what broke” email