Automation library · Lead generation

Double opt-in email verification system with Google Sheets

Started by someone submitting a form, and works across Email and Google Sheets. 12 steps, 2 branches: a working afternoon to understand properly.

Medium

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

The flow

Starts it 1Logic 4Service 7

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

  1. 1On form submissionForm triggerStarts it
  2. 2Email FormFormService
  3. 3Generate CodeCodeLogic
  4. 4Store DataGoogle SheetsService
  5. 5Send EmailEmail SendService
  6. 6Verification FormFormService
  7. 7Check CodeIfLogic
  8. 8Main FormFormService
  9. 9Incorrect Code FormFormService
  10. 10Continue With Your FlowNo OpLogic
  11. 11Second CheckIfLogic
  12. 12Reset FormFormService

How it's built

Starts on
Someone submitting a form
Steps
12, with 2 branches
Size
Medium: a working afternoon
Connects to
Email, Google Sheets
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Email and Google Sheets accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone submitting a form.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 12 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 12 steps before you point it at anything that matters.