The flow
Starts it 2Logic 9Service 7
The steps in the order they run, from what starts it.
- 1Webhook - Receive InvoiceWebhookStarts it
- 2Validate PayloadCodeLogic
- 3Has Remote URL?IfLogic
- 4Upload to URL - RemoteUpload To UrlService
- 5Upload to URL - BinaryUpload To UrlService
- 6Extract CDN URLCodeLogic
- 7AWS Textract - Analyse ExpenseHttp RequestService
- 8Parse & Validate Extracted DataCodeLogic
- 9Sheets - Search for DuplicateGoogle SheetsService
- 10Resolve Write ActionCodeLogic
- 11Route Write ActionSwitchLogic
- 12Sheets - Append New InvoiceGoogle SheetsService
- 13Sheets - Update Incomplete RowGoogle SheetsService
- 14Mark as DuplicateCodeLogic
- 15Merge Sheets ResultCodeLogic
- 16Slack - Notify FinanceSlackService
- 17Build Final ResponseCodeLogic
- 18Respond to WebhookRespond To WebhookStarts it
How it's built
- Starts on
- Another system calling it
- Steps
- 18, with 2 branches
- Size
- Medium: a working afternoon
- Connects to
- Google Sheets, Slack
- Model
- None. This is plumbing, not judgement
Questions
What does it need to run?
An n8n account, plus your own Google Sheets and Slack accounts. 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?
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. 18 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.
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 18 steps before you point it at anything that matters.