Automation library · Alerts and monitoring

Automate event registration and QR check-ins

Started by another system calling it, and works across Gmail, Google Sheets and Slack. 21 steps, 3 branches: large, and worth reading before you trust it with anything live.

Large

Download free
21 stepsLarge: read it before trusting it with anything live
3Branches: places the flow splits
0Loops or waits
3Services it connects to

The flow

Starts it 6Logic 9Service 6

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

  1. 1Registration WebhookWebhookStarts it
  2. 2Check-in WebhookWebhookStarts it
  3. 3Create Ticket DataSetLogic
  4. 4Decode QR CodeCodeLogic
  5. 5Save to Participants SheetGoogle SheetsService
  6. 6Is Valid QR?IfLogic
  7. 7Prepare QR PayloadCodeLogic
  8. 8Lookup Ticket in DBGoogle SheetsService
  9. 9Invalid QR ResponseRespond To WebhookStarts it
  10. 10Generate QR CodeHttp RequestService
  11. 11Validate Check-inCodeLogic
  12. 12Send Ticket EmailGmailService
  13. 13Check-in Allowed?IfLogic
  14. 14Registration SuccessRespond To WebhookStarts it
  15. 15Mark as Checked InGoogle SheetsService
  16. 16Check-in DeniedRespond To WebhookStarts it
  17. 17Is VIP?IfLogic
  18. 18Slack VIP AlertSlackService
  19. 19Merge VIP PathMergeLogic
  20. 20Build Success ResponseCodeLogic
  21. 21Check-in SuccessRespond To WebhookStarts it

How it's built

Starts on
Another system calling it
Steps
21, with 3 branches
Size
Large: read it before trusting it with anything live
Connects to
Gmail, Google Sheets, Slack
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Gmail, Google Sheets and Slack 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?

Take your time. At 21 steps it is large: read it before trusting it with anything live.

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 21 steps before you point it at anything that matters.