Automation library · Lead generation

Validate and deduplicate webhook leads into a Google Sheets

Started by another system calling it, and works across Google Sheets. 9 steps, 2 branches: a working afternoon to understand properly.

Medium

9 stepsMedium: a working afternoon
2Branches: places the flow splits
0Loops or waits
1Service it connects to

The flow

Starts it 1Logic 5Service 3

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

  1. 1Receive intake webhookWebhookStarts it
  2. 2SettingsSetLogic
  3. 3Normalize fieldsSetLogic
  4. 4Valid?IfLogic
  5. 5Look up existing by source idGoogle SheetsService
  6. 6Append to review queueGoogle SheetsService
  7. 7New record?IfLogic
  8. 8Create recordGoogle SheetsService
  9. 9Duplicate, skipNo OpLogic

How it's built

Starts on
Another system calling it
Steps
9, with 2 branches
Size
Medium: a working afternoon
Connects to
Google Sheets
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

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

What starts it?

It starts on another system calling it.

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. 9 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 9 steps before you point it at anything that matters.