Automation library · Alerts and monitoring

Send LemonSqueezy subscription alerts

Started by another system calling it, and works across Discord, Google Sheets, Slack and Telegram. 10 steps, 2 branches: a working afternoon to understand properly.

Medium

10 stepsMedium: a working afternoon
2Branches: places the flow splits
0Loops or waits
4Services it connects to

The flow

Starts it 1Logic 4Service 5

The steps in the order they run, from what starts it.

  1. 1When LemonSqueezy Event ReceivedWebhookStarts it
  2. 2Compute HMAC SignatureCryptoService
  3. 3Validate HMAC SignatureIfLogic
  4. 4Parse Webhook PayloadCodeLogic
  5. 5Normalize Event DataCodeLogic
  6. 6Check If Event Triggers AlertIfLogic
  7. 7Append Event to Google SheetsGoogle SheetsService
  8. 8Post Alert to SlackSlackService
  9. 9Dispatch Alert to DiscordDiscordService
  10. 10Transmit Alert to TelegramTelegramService

How it's built

Starts on
Another system calling it
Steps
10, with 2 branches
Size
Medium: a working afternoon
Connects to
Discord, Google Sheets, Slack, Telegram
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Discord, Google Sheets, Slack and Telegram accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 10 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 10 steps before you point it at anything that matters.