The flow
Starts it 5Logic 1Service 8
The steps in the order they run, from what starts it.
- 1Webhook Trigger - Invoice CreatedWebhookStarts it
- 2Webhook - Payment ReceivedWebhookStarts it
- 3Xero - Create InvoiceXeroService
- 4PostgreSQL - Update Payment StatusPostgresService
- 5IF - Invoice Created SuccessfullyIfLogic
- 6Xero - Update Invoice to Paid1XeroService
- 7Add Invoice RecordPostgresService
- 8Respond to Webhook - ErrorRespond To WebhookStarts it
- 9WhatsApp - Send Invoice Confirmation1TwilioService
- 10Google Calendar - Create Due Date EventGoogle CalendarService
- 11Google Calendar - Remove Due Date EventGoogle CalendarService
- 12WhatsApp - Send Invoice ConfirmationTwilioService
- 13Respond to Webhook - PaymentRespond To WebhookStarts it
- 14Respond to Webhook - SuccessRespond To WebhookStarts it
How it's built
- Starts on
- Another system calling it
- Steps
- 14, with 1 branch
- Size
- Medium: a working afternoon
- Connects to
- Google Calendar, Postgres, Twilio
- Model
- None. This is plumbing, not judgement
Questions
What does it need to run?
An n8n account, plus your own Google Calendar, Postgres and Twilio 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. 14 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.
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 14 steps before you point it at anything that matters.