Automation library · Money admin

Classify Gmail invoice attachments with Gemini

Started by an arriving email, and works across Gmail. It hands the judgement calls to Gemini. 9 steps, 2 branches: a working afternoon to understand properly.

MediumCalls a model: Gemini

9 stepsMedium: a working afternoon
2Branches: places the flow splits
0Loops or waits
1Service it connects to

The flow

Starts it 1Model 1Logic 4Service 3

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

  1. 1Gmail TriggerGmail triggerStarts it
  2. 2Has AttachmentIfLogic
  3. 3Extract Text from PDFExtract From FileService
  4. 4No Attachment - EndNo OpLogic
  5. 5Classify Invoice/Receipt (AI)Google GeminiModel
  6. 6Is Invoice or ReceiptIfLogic
  7. 7Get AttachmentGmailService
  8. 8Not Target - EndNo OpLogic
  9. 9Forward to freeeGmailService

How it's built

Starts on
An arriving email
Steps
9, with 2 branches
Size
Medium: a working afternoon
Connects to
Gmail
Model
Gemini

Questions

What does it need to run?

An n8n account, plus your own Gmail account, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an arriving email.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 9 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 9 steps before you point it at anything that matters.