Automation library · E-commerce

Send low-stock purchase orders with Google Sheets and Slack

Started by a clock, and works across Google Sheets and Slack. It hands the judgement calls to OpenAI. 16 steps, 2 branches, 1 loop or waits: a working afternoon to understand properly.

MediumCalls a model: OpenAI

Download free
16 stepsMedium: a working afternoon
2Branches: places the flow splits
1Loop or waits
2Services it connects to

The flow

Starts it 3Model 2Logic 4Service 7

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

  1. 1OpenAI, PO ModelLm Chat Open AiModel
  2. 2Error TriggerError triggerStarts it
  3. 3Manual TriggerManual triggerStarts it
  4. 4Check Every 4 HoursSchedule triggerStarts it
  5. 5Generate PO MessageAgentModel
  6. 6🚨 Slack Error AlertSlackService
  7. 7Get Active ProductsGoogle SheetsService
  8. 8Slack, Send Purchase OrderSlackService
  9. 9Process One Product at a TimeSplit In BatchesLogic
  10. 10Update Inventory, Reorder TriggeredGoogle SheetsService
  11. 11Slack, Summary ReportSlackService
  12. 12Calculate Stock Level & UrgencyCodeLogic
  13. 13Log to Reorder Log SheetGoogle SheetsService
  14. 14Update Last Checked DateGoogle SheetsService
  15. 15Needs Reorder?IfLogic
  16. 16Already Reordered Today?IfLogic

How it's built

Starts on
A clock
Steps
16, with 2 branches, 1 loop or waits
Size
Medium: a working afternoon
Connects to
Google Sheets, Slack
Model
OpenAI

Questions

What does it need to run?

An n8n account, plus your own 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 clock.

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. 16 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 16 steps before you point it at anything that matters.