Score and triage inbound leads with OpenAI, HubSpot, and Slack

Description

Quick overview
This workflow receives new lead submissions via a webhook, normalizes the data, scores the lead with OpenAI, sends an acknowledgment email, upserts the contact into HubSpot, and posts a Slack alert when the score meets a configured “hot lead” threshold.

How it works
Receives a POST request on a webhook endpoint whenever a new lead is submitted.
Normalizes incoming form fields into a consistent lead object (name, email, phone, company, message, source) and prepares an OpenAI Chat Completions request.
Sends the lead details to the OpenAI API to generate a 1–10 score plus a short reason and summary in JSON.
Parses the OpenAI response and attaches the score, reason, and summary to the lead record.
Sends a thank-you email to the lead using your SMTP mail server with a booking link for follow-up.
Upserts the lead as a contact in HubSpot using the email address as the unique identifier.
Posts a message to Slack via an incoming webhook when the lead score is greater than or equal to the configured hot-lead score.

Setup
Configure the webhook URL in your form tool to POST lead submissions to the workflow’s “New lead” production webhook endpoint.
Add an HTTP Header Auth credential for OpenAI (Authorization: Bearer ) and attach it to the OpenAI request.
Add an HTTP Header Auth credential for HubSpot (Authorization: Bearer ) and attach it to the HubSpot upsert request.
Add an SMTP credential for sending email and set the from address, business name, booking link, Slack incoming webhook URL, and hot-lead score in the Config values.