The flow
Starts it 1Model 1Logic 3Service 6
The steps in the order they run, from what starts it.
- 1Google Sheets TriggerGoogle Sheets triggerStarts it
- 2AI Invoice Content GenerationOpen AiModel
- 3Create Invoice from TemplateGoogle DocsService
- 4Send InvoiceGmailService
- 5Until 3 Days Before Due DateWaitLogic
- 6Check Payment StatusHttp RequestService
- 7Is Paid?IfLogic
- 8Pre-Due ReminderGmailService
- 9Update StatusGoogle SheetsService
- 10Until 2 Days After Due DateWaitLogic
- 11Overdue AlertSlackService
How it's built
- Starts on
- A change in a Google Sheet
- Steps
- 11, with 1 branch, 2 loops or waits
- Size
- Medium: a working afternoon
- Connects to
- Gmail, Google Docs, Google Sheets, Slack
- Model
- OpenAI
Questions
What does it need to run?
An n8n account, plus your own Gmail, Google Docs, Google Sheets and Slack accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.
What starts it?
It starts on a change in a Google Sheet.
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. 11 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 itNothing 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 11 steps before you point it at anything that matters.