🤝 Send LemonSqueezy subscription alerts to Slack, Discord, Telegram and log them in Google Sheets
⚡ 10 views · 🤝 CRM & Sales Operations
Description
Quick overview
Get an alert in Slack, Discord or Telegram within seconds every time a LemonSqueezy subscription is created, cancelled, expires or a payment fails, plus a running log of every event in Google Sheets.
How it works
- Receives a POST webhook from LemonSqueezy with the raw request body.
- Computes an HMAC signature for the raw body and compares it to LemonSqueezy’s x-signature header, stopping if they don’t match.
- Parses the webhook JSON and extracts the event name from the headers or payload metadata.
- Normalizes subscription and payment payloads into flat fields like customer email, product, plan, status, amount, and currency.
- Appends the normalized event to Google Sheets as an event log.
- If the event is not subscription_updated, sends an alert message to Slack, Discord, and/or Telegram with the key event details.
Setup
- In LemonSqueezy, create a webhook pointing to this workflow’s Production webhook URL and set a signing secret.
- Configure the Crypto credential/secret used for the HMAC calculation so it matches your LemonSqueezy webhook signing secret exactly.
- Set up at least one alert destination: connect Slack OAuth and choose a channel, or provide a Discord webhook URL, or add a Telegram bot token and chat ID.
- (Optional) Connect Google Sheets OAuth, set the document ID and sheet name, and create a header row that matches the logged fields (timestamp, event, customer_email, product, plan, amount, currency, status).
Requirements
- A LemonSqueezy store (any plan)
- n8n (cloud or self-hosted)
- At least one of: Slack, Discord or Telegram
- A Google account for the log sheet (optional — alerts work without it)
Customization
- Delete the alert nodes you don’t use. The template ships with all three channels
- Change which events alert by editing the “Should this event alert?” IF node
Additional info
Setup takes about 20 minutes including credentials and a test event. subscription_updated events are logged to the sheet but never alert, so you don’t get double pings.
🔗 Nodes Used
Google Sheets, Slack, Webhook, Telegram, Discord
📥 Import
Download workflow.json and import into n8n:
Workflow menu → Import from File