Automation library · Money admin

Track receipt expenses with LINE and OpenAI

Started by another system calling it, and works across Google Drive and Google Sheets. It hands the judgement calls to OpenAI. 17 steps, 2 branches: a working afternoon to understand properly.

MediumCalls a model: OpenAI

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

The flow

Starts it 1Model 5Logic 4Service 7

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

  1. 1OpenAI Model: OCRLm Chat Open AiModel
  2. 2Output Parser: Structured DataOutput Parser StructuredModel
  3. 3OpenAI Model: AdviceLm Chat Open AiModel
  4. 4LINE Webhook1WebhookStarts it
  5. 5AI Agent: Extract Receipt DataAgentModel
  6. 6AI Agent: Business AdviceAgentModel
  7. 7Filter: Is Image Message?IfLogic
  8. 8Google Sheets: Check DuplicateGoogle SheetsService
  9. 9LINE: Final ConfirmationHttp RequestService
  10. 10Download LINE Image FileHttp RequestService
  11. 11Filter: Duplicate Found?IfLogic
  12. 12LINE: Notify DuplicateHttp RequestService
  13. 13Prepare Image DataSetLogic
  14. 14Google Drive: Save ProofGoogle DriveService
  15. 15Google Sheets: Add RowGoogle SheetsService
  16. 16Google Sheets: Fetch HistoryGoogle SheetsService
  17. 17Calculate Monthly TotalsCodeLogic

How it's built

Starts on
Another system calling it
Steps
17, with 2 branches
Size
Medium: a working afternoon
Connects to
Google Drive, Google Sheets
Model
OpenAI

Questions

What does it need to run?

An n8n account, plus your own Google Drive and Google Sheets accounts, and a key for OpenAI. 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?

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

How long does it take to set up?

Plan an afternoon. 17 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 17 steps before you point it at anything that matters.