Automation library · Data collection

Clean and validate inbound contact records with Gemini

Started by another system calling it, and works across Google Sheets. It hands the judgement calls to Gemini. 14 steps, 2 branches: a working afternoon to understand properly.

MediumCalls a model: Gemini

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

The flow

Starts it 3Model 4Logic 5Service 2

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

  1. 1When Record ImportedWebhookStarts it
  2. 2Gemini Chat AILm Chat Google GeminiModel
  3. 3Gemini Repair AILm Chat Google GeminiModel
  4. 4Set Schema and RulesSetLogic
  5. 5First Pass Clean with GeminiChain LlmModel
  6. 6Second Pass Clean with GeminiChain LlmModel
  7. 7Run First Pass ValidationCodeLogic
  8. 8Run Second Pass ValidationCodeLogic
  9. 9Check First Validation StatusIfLogic
  10. 10Check Second Validation StatusIfLogic
  11. 11Append Clean Records to SheetsGoogle SheetsService
  12. 12Append Bad Records to QuarantineGoogle SheetsService
  13. 13Respond with Clean JSONRespond To WebhookStarts it
  14. 14Respond with Rejection NoticeRespond To WebhookStarts it

How it's built

Starts on
Another system calling it
Steps
14, with 2 branches
Size
Medium: a working afternoon
Connects to
Google Sheets
Model
Gemini

Questions

What does it need to run?

An n8n account, plus your own Google Sheets account, and a key for Gemini. 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?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 14 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 14 steps before you point it at anything that matters.