Automation library · Money admin

Send Stripe invoice reminders with Google Sheets and Slack

Started by an event in a connected app, and works across Email, Google Calendar, Google Sheets and Slack. It hands the judgement calls to OpenAI. 13 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: OpenAI

13 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
4Services it connects to

The flow

Starts it 1Model 3Logic 3Service 6

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

  1. 1Stripe Invoice TriggerStripe triggerStarts it
  2. 2OpenAI Chat ModelLm Chat Open AiModel
  3. 3Structured Output ParserOutput Parser StructuredModel
  4. 4Workflow ConfigurationSetLogic
  5. 5Generate Payment ReminderAgentModel
  6. 6Normalize Invoice DataSetLogic
  7. 7Route by Payment StatusSwitchLogic
  8. 8Log to Google SheetsGoogle SheetsService
  9. 9Notify Accountant on SlackSlackService
  10. 10Send Reminder EmailEmail SendService
  11. 11Generate Invoice PDFConvert To FileService
  12. 12Schedule Follow-upGoogle CalendarService
  13. 13CRM IntegrationHttp RequestService

How it's built

Starts on
An event in a connected app
Steps
13, with 1 branch
Size
Medium: a working afternoon
Connects to
Email, Google Calendar, Google Sheets, Slack
Model
OpenAI

Questions

What does it need to run?

An n8n account, plus your own Email, Google Calendar, 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 an event in a connected app.

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. 13 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 13 steps before you point it at anything that matters.