Automation library · Money admin

Extract invoice data from Slack uploads with Gemini

Started by an event in a connected app, and works across Google Drive, Google Sheets and Slack. 12 steps, 1 branch: a working afternoon to understand properly.

Medium

12 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
3Services it connects to

The flow

Starts it 1Logic 5Service 6

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

  1. 1Slack TriggerSlack triggerStarts it
  2. 2Download Invoice FileHttp RequestService
  3. 3Prepare FileCodeLogic
  4. 4Supported File?IfLogic
  5. 5Build Gemini RequestCodeLogic
  6. 6Archive To DriveGoogle DriveService
  7. 7Unsupported File NoticeSlackService
  8. 8Gemini ExtractHttp RequestService
  9. 9MergeMergeLogic
  10. 10Parse Invoice DataCodeLogic
  11. 11Append To SheetGoogle SheetsService
  12. 12Reply In ThreadSlackService

How it's built

Starts on
An event in a connected app
Steps
12, with 1 branch
Size
Medium: a working afternoon
Connects to
Google Drive, Google Sheets, Slack
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Google Drive, Google Sheets and Slack accounts. 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?

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. 12 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 12 steps before you point it at anything that matters.