Automation library · Data collection

Gmail email categorization & auto reply with OpenAI

Started by an arriving email, and works across Gmail and Google Sheets. It hands the judgement calls to OpenAI. 15 steps: a working afternoon to understand properly.

MediumCalls a model: OpenAI

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

The flow

Starts it 1Model 6Service 8

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

  1. 1Gmail TriggerGmail triggerStarts it
  2. 2OpenAI Chat ModelLm Chat Open AiModel
  3. 3Text ClassifierText ClassifierModel
  4. 4Save Priority MailGmailService
  5. 5Save Advertisement MailGmailService
  6. 6Save Inquiry MailGmailService
  7. 7Save Finance MailGmailService
  8. 8Generate Priority DraftOpen AiModel
  9. 9Generate Ad SummaryOpen AiModel
  10. 10Generate Finance SummaryOpen AiModel
  11. 11Generate Inquiry ReplyOpen AiModel
  12. 12Create DraftGmailService
  13. 13Append Row to SheetGoogle SheetsService
  14. 14Send Finance MailGmailService
  15. 15Reply to InquiryGmailService

How it's built

Starts on
An arriving email
Steps
15
Size
Medium: a working afternoon
Connects to
Gmail, Google Sheets
Model
OpenAI

Questions

What does it need to run?

An n8n account, plus your own Gmail 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 an arriving email.

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. 15 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 15 steps before you point it at anything that matters.