Automation library · Money admin

Receive orders, generate branded invoice PDFs with Gmail

Started by another system calling it, and works across Gmail and Google Drive. 8 steps, 1 branch: small enough to read in one sitting and change without fear.

Small

Download free
8 stepsSmall: readable in one sitting
1Branch: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 3Logic 2Service 3

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

  1. 1When an order comes inWebhookStarts it
  2. 2Build & total the invoiceCodeLogic
  3. 3Is the order valid?IfLogic
  4. 4Generate the invoice PDFPdfmillService
  5. 5Return a 400 errorRespond To WebhookStarts it
  6. 6Email the invoice to the customerGmailService
  7. 7Archive the invoice to Google DriveGoogle DriveService
  8. 8Return successRespond To WebhookStarts it

How it's built

Starts on
Another system calling it
Steps
8, with 1 branch
Size
Small: readable in one sitting
Connects to
Gmail, Google Drive
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Gmail and Google Drive 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?

Not long. At 8 steps it can be read in one sitting and changed without fear.

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 8 steps before you point it at anything that matters.