Automation library · Money admin

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.

MediumCalls a model: Gemini

Download free
15 stepsMedium: a working afternoon
3Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 4Logic 5Service 5

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

  1. 1Google Gemini Chat Model2Lm Chat Google GeminiModel
  2. 2Google Gemini Chat Model3Lm Chat Google GeminiModel
  3. 3Invoice Received1Google Drive triggerStarts it
  4. 4AI Extract (Image)Chain LlmModel
  5. 5AI Extract (Text)Chain LlmModel
  6. 6Download Invoice1Google DriveService
  7. 7Code (Clean JSON)1CodeLogic
  8. 8Is Image File?IfLogic
  9. 9Is Invoice Valid?IfLogic
  10. 10Extract from File1Extract From FileService
  11. 11Is High Value? (>$500)IfLogic
  12. 12Stop WorkflowNo OpLogic
  13. 13Slack Alert1SlackService
  14. 14Xero: Create Contact1XeroService
  15. 15Xero: Create Bill1XeroService

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.