# Process Google Drive Invoices to Xero with Slack Alerts: n8n workflow

> Started by an event in a connected app, and works across Google Drive and Slack. It hands the judgement calls to Gemini.

Source: https://millionrounds.com/workflow/process-google-drive-invoices-to-xero-with-slack-alerts (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Money admin](https://millionrounds.com/workflows?category=Money+admin#library)

# Process Google Drive Invoices to Xero with Slack Alerts

Started by an event in a connected app, and works across Google Drive and Slack. It hands the judgement calls to Gemini. 15 steps, 3 branches: a working afternoon to understand properly.

Medium Calls a model: Gemini

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fprocess-google-drive-invoices-to-xero-with-slack-alerts)

**15 steps** Medium: a working afternoon

**3** Branches: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 1 Model 4 Logic 5 Service 5

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

- 1 **Google Gemini Chat Model2** Lm Chat Google Gemini *Model*
- 2 **Google Gemini Chat Model3** Lm Chat Google Gemini *Model*
- 3 **Invoice Received1** Google Drive trigger *Starts it*
- 4 **AI Extract (Image)** Chain Llm *Model*
- 5 **AI Extract (Text)** Chain Llm *Model*
- 6 **Download Invoice1** Google Drive *Service*
- 7 **Code (Clean JSON)1** Code *Logic*
- 8 **Is Image File?** If *Logic*
- 9 **Is Invoice Valid?** If *Logic*
- 10 **Extract from File1** Extract From File *Service*
- 11 **Is High Value? (>$500)** If *Logic*
- 12 **Stop Workflow** No Op *Logic*
- 13 **Slack Alert1** Slack *Service*
- 14 **Xero: Create Contact1** Xero *Service*
- 15 **Xero: Create Bill1** Xero *Service*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 15, with 3 branches
- **Size:** Medium: a working afternoon
- **Connects to:** Google Drive, Slack
- **Model:** Gemini

## Questions

What does it need to run?

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

What starts it?

It starts on an event in a connected app.

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. 15 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 15 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fprocess-google-drive-invoices-to-xero-with-slack-alerts)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Google Drive](https://millionrounds.com/workflows?service=Google+Drive#library)[Slack](https://millionrounds.com/workflows?service=Slack#library)

## Workflows like it

Also money admin, with the same services where possible, closest in size first.

- [**Flag duplicate and risky AP invoices with Gmail and OpenAI** 15 steps · calls a model · Gmail, Slack](https://millionrounds.com/workflow/flag-duplicate-and-risky-ap-invoices-with-gmail-and-openai)
- [**Generate client proposals with OpenAI and Google Sheets** 15 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/generate-client-proposals-with-openai-and-google-sheets)
- [**Generate proposals with OpenAI and Google Docs** 15 steps · calls a model · Gmail, Google Docs](https://millionrounds.com/workflow/generate-proposals-with-openai-and-google-docs)
- [**Reconcile Stripe payments and flag anomalies** 15 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/reconcile-stripe-payments-and-flag-anomalies)
- [**Track expenses from receipt photos with Google Sheets** 15 steps · calls a model · Google Sheets, Slack](https://millionrounds.com/workflow/track-expenses-from-receipt-photos-with-google-sheets)
- [**Classify invoices and route them to Google Drive folders** 15 steps · Google Drive, Slack](https://millionrounds.com/workflow/classify-invoices-and-route-them-to-google-drive-folders)