Automation library · Data collection

Send AI-generated Gmail auto replies with OpenAI

Started by an arriving email, and works across Gmail and Google Sheets. It hands the judgement calls to OpenAI. 11 steps, 3 branches: a working afternoon to understand properly.

MediumCalls a model: OpenAI

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11 stepsMedium: a working afternoon
3Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 1Logic 6Service 3

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

  1. 1Gmail Trigger - New EmailsGmail triggerStarts it
  2. 2Config - Rules & ThresholdsSetLogic
  3. 3Normalize - Email PayloadSetLogic
  4. 4IF - Ignore FilterIfLogic
  5. 5Code - Extract Sender EmailCodeLogic
  6. 6Get row(s) in sheetGoogle SheetsService
  7. 7IF - Found in Reply History?IfLogic
  8. 8Gmail - Search Sent to SenderGmailService
  9. 9IF - Sent history exists?IfLogic
  10. 10Message a modelOpen AiModel
  11. 11Reply to a messageGmailService

How it's built

Starts on
An arriving email
Steps
11, with 3 branches
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. 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 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 11 steps before you point it at anything that matters.