# Score and route Facebook Marketplace leads with OpenAI: n8n workflow

> Started by an event in a connected app, and works across Slack and Supabase. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/score-and-route-facebook-marketplace-leads-with-openai (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Lead generation](https://millionrounds.com/workflows?category=Lead+generation#library)

# Score and route Facebook Marketplace leads with OpenAI

Started by an event in a connected app, and works across Slack and Supabase. It hands the judgement calls to OpenAI. 11 steps, 2 branches: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fscore-and-route-facebook-marketplace-leads-with-openai)

**11 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 1 Model 2 Logic 4 Service 4

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

- 1 **Facebook Marketplace Inquiry** Facebook trigger *Starts it*
- 2 **GPT-4o-mini** Lm Chat Open Ai *Model*
- 3 **Extract Inquiry Details** Agent *Model*
- 4 **Parse AI Response (JSON Safe)** Code *Logic*
- 5 **Store Inquiry (Supabase)** Supabase *Service*
- 6 **Compute Lead Score** Code *Logic*
- 7 **Check: Hot Lead (Score ≥ 5)** If *Logic*
- 8 **Slack Hot Leads** Slack *Service*
- 9 **Check: Warm Lead (Score ≥ 3)** If *Logic*
- 10 **Slack Warm Leads** Slack *Service*
- 11 **Slack Cold Leads** Slack *Service*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 11, with 2 branches
- **Size:** Medium: a working afternoon
- **Connects to:** Slack, Supabase
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Slack and Supabase accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an event in a connected app.

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.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fscore-and-route-facebook-marketplace-leads-with-openai)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Slack](https://millionrounds.com/workflows?service=Slack#library)[Supabase](https://millionrounds.com/workflows?service=Supabase#library)

## Workflows like it

Also lead generation, with the same services where possible, closest in size first.

- [**Automated sales leaderboard with HighLevel CRM and OpenAI** 11 steps · calls a model · GoHighLevel, Google Sheets](https://millionrounds.com/workflow/automated-sales-leaderboard-with-highlevel-crm-and-openai)
- [**Lead email follow up with OpenAI and Airtable** 11 steps · calls a model · Airtable, Gmail](https://millionrounds.com/workflow/lead-email-follow-up-with-openai-and-airtable)
- [**Lead qualification and scoring with Jotform and Gemini** 11 steps · calls a model · Gmail, Slack](https://millionrounds.com/workflow/lead-qualification-and-scoring-with-jotform-and-gemini)
- [**Re-engage HubSpot leads with Azure OpenAI GPT-4o and Gmail** 11 steps · calls a model · Gmail, HubSpot](https://millionrounds.com/workflow/re-engage-hubspot-leads-with-azure-openai-gpt-4o-and-gmail)
- [**Re-engage event participants from HubSpot with Gemini** 11 steps · calls a model · Email, Slack](https://millionrounds.com/workflow/re-engage-event-participants-from-hubspot-with-gemini)
- [**Score and route GoHighLevel leads with Claude and Slack** 11 steps · calls a model · Google Sheets, Slack](https://millionrounds.com/workflow/score-and-route-gohighlevel-leads-with-claude-and-slack)