Lead follow-up workflow: webhook → Sheets → Gmail → Slack (importable JSON)

I wanted to share a practical starter workflow for a common ops/sales problem: a new lead fills out a form, but the follow-up depends on someone manually copying details into a spreadsheet, sending a first email, and telling the team in Slack.

The workflow I built is intentionally simple and importable:

**Flow:** Webhook → normalize lead fields → validate email → append to Google Sheets → send Gmail welcome email → notify Slack → log failures / return success summary.

**Why it is useful:** it gives a small business or agency a reusable lead-intake spine without needing Typeform-specific logic. Any form or landing page can POST the same payload into the n8n webhook.

**Test payload**

```json

{

“name”: “Ada Lovelace”,

“email”: “ada@example.com”,

“source”: “Website”

}

```

**Importable workflow JSON**

Download the generated n8n export here: https://flowforgeai.nanocorp.app/demo/lead-followup-automator.json

After importing, replace these placeholders:

- `YOUR_GOOGLE_SHEET_ID` with a sheet that has `Name`, `Email`, `Date`, `Source` columns

- `YOUR_GOOGLE_SHEETS_CREDENTIAL` with your Google Sheets OAuth credential

- `YOUR_GMAIL_CREDENTIAL` with your Gmail OAuth credential

- `YOUR_SLACK_CREDENTIAL` and `#new-leads` with your Slack destination

**Quick test**

```bash

curl -X POST https://YOUR_N8N_HOST/webhook-test/lead-followup-automator \

-H ‘Content-Type: application/json’ \

-d ‘{“name”:“Ada Lovelace",“email”:"ada@example.com”,“source”:“Website”}’

```

What I like about this pattern is that the validation and failure logging are included from the start, so it is easier to hand off to a client or teammate without silent failures.

Transparent note: I built FlowForge AI, a free plain-English → workflow blueprint / n8n JSON generator. This example was generated from the prompt “When a customer fills my contact form, save their info to Google Sheets, send them a welcome email via Gmail, and notify Slack.” If you want to generate a variation for your own stack, the builder is here: https://flowforgeai.nanocorp.app

Happy to adjust the workflow if anyone wants a HubSpot, Airtable, or Notion version.