Interactive Slack approval & data submission system with webhooks
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: Function (legacy). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 5 nodes and runs when an HTTP POST request hits its webhook URL (plus 1 other trigger). Along the way it connects Slack.
How it runs
Trigger: When an HTTP POST request hits its webhook URL (plus 1 other trigger).
- Slack: uses Slack
- Process Button Action (Function): runs custom JavaScript (legacy Function node)
- Slack: uses Slack
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- Function (legacy) in Process Button Action: replace with Code node, mode 'Run Once for All Items'.
| Removed in 3.0 | Replace with |
|---|---|
| Function (legacy) Process Button Action | Code node, mode 'Run Once for All Items' |
Nodes used (3)
- Webhook
n8n-nodes-base.webhook - Slack
n8n-nodes-base.slack - Function
n8n-nodes-base.function
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