How to Send Facebook Leads to SendGrid with LeadSync

Your Facebook lead form just captured a high-intent prospect, but getting that lead into SendGrid for nurturing shouldn’t require manual work or fragile Zapier connections. With LeadSync, every Facebook lead automatically syncs to SendGrid in seconds—with zero setup delays and full field mapping built in. This guide shows you how to connect Facebook leads to SendGrid and start building automated email campaigns on day one.

Quick Start: Connect Facebook Leads to SendGrid in 5 Steps

• Generate a SendGrid API Key (Full Access)
• Open LeadSync and click “Add Connection”
• Paste your API Key and select your contact list
• Connect your Facebook lead form source
• Map Facebook fields to SendGrid reserved fields (email, first name, last name)

Done. Leads sync automatically. No credit card required. Start your free 14-day trial.

Why Sync Facebook Leads to SendGrid?

Facebook lead forms capture high-intent prospects, but without a delivery system, they’re just data sitting in Meta Business Suite. SendGrid turns those leads into engaged email subscribers. Here’s what you gain by connecting the two:

• Automatic upsert behavior: Existing contacts are updated with new data, not duplicated. If Sarah has already responded to your ads, her profile stays clean.
• Reserved field mapping: Email, first name, last name, phone, and company all sync to SendGrid’s native fields—no custom field bloat.
• Seconds-fast delivery: Leads arrive in SendGrid within 5-10 seconds, so you can trigger welcome sequences immediately.
• Custom field support: Map any Facebook field (custom questions, budget, job title, company size) to SendGrid custom fields for segment-ready data.
• Multi-source flexibility: Works with leads from Facebook, Google Ads, LinkedIn, and TikTok—all flowing into a single SendGrid list.
• No third-party bloat: Zapier costs $20-30/month per task and adds latency. LeadSync is one flat rate, no per-lead fees, no Zapier dependency.

Step-by-Step: Connect Facebook Leads to SendGrid

Step 1: Create a SendGrid API Key

Log in to your SendGrid account and navigate to Settings > API Keys. Click “Create API Key” and give it a descriptive name like “LeadSync Facebook Leads.” Select Full Access to ensure the connection can read lists, write contacts, and handle custom fields. Copy the key—you’ll paste it into LeadSync next.

Keep this key somewhere secure; SendGrid only shows it once.

Step 2: Log in to LeadSync and Add a New Connection

Open LeadSync and go to Integrations > Add Connection. Scroll down and select SendGrid from the email marketing platforms list. You’ll see a form asking for your API Key and contact list selection.

Step 3: Paste Your API Key and Select Your List

Paste the full SendGrid API Key into the field. LeadSync immediately validates it and loads your available contact lists. Choose the list where you want Facebook leads to land—or create a dedicated list in SendGrid first (e.g., “Facebook Lead Form Prospects”). Once selected, click Save.

Step 4: Set Up Your Facebook Lead Form Connection

In LeadSync, go to Integrations > Add Connection again and select Facebook Lead Ads. Authorize LeadSync to access your Facebook ad account (you’ll see Meta’s OAuth screen). Choose your ad account and select the specific lead form you want to sync. If you haven’t created a lead form yet, build one in Meta Ads Manager—it only takes a few minutes.

Step 5: Map Your Facebook Fields to SendGrid

Now the critical part: tell LeadSync which Facebook fields go to which SendGrid fields. Most lead forms capture email, first name, and last name—these map directly to SendGrid reserved fields. If your Facebook form includes custom questions (e.g., “What’s your budget?” or “What’s your biggest challenge?”), map them to SendGrid custom fields so you can segment and personalize campaigns.

Example mapping:

• Facebook “Email” → SendGrid Email
• Facebook “First Name” → SendGrid First Name
• Facebook “Last Name” → SendGrid Last Name
• Facebook “Budget Range” → SendGrid custom field “Budget”
• Facebook “Company Size” → SendGrid custom field “Company Size”

Save your mapping.

Step 6: Test with a Lead

Fill out your Facebook lead form yourself. Within 10 seconds, check your SendGrid contact list—you should see your test lead with all fields populated correctly. If something’s missing or malformed, go back to your field mapping and adjust. Once the test passes, you’re live. New leads will sync automatically from this point forward.

Customizing Your SendGrid Integration

LeadSync’s SendGrid integration is flexible. Here are common customizations:

Add Custom Fields for Segmentation

SendGrid custom fields let you store any data Facebook collects. If your lead form asks “What industry are you in?” or “How many employees does your company have?”, create matching custom fields in SendGrid and map Facebook data to them. This unlocks powerful segmentation—you can trigger different email sequences based on company size, industry, or budget range.

Create Multiple Connections for Different Lead Forms

Running multiple Facebook campaigns? Create a separate LeadSync connection for each campaign if you want leads in different SendGrid lists—or route all campaigns to a single list and use SendGrid’s segmentation features to organize them. LeadSync supports both workflows.

Update Existing Contacts (Upsert Behavior)

If someone submits multiple Facebook lead forms or re-engages with your campaign, LeadSync upserts the contact instead of duplicating it. Their first name, last name, and custom fields are updated with the latest data. This keeps your SendGrid list clean and prevents double-emails.

Trigger SendGrid Automations

After syncing a lead to SendGrid, set up automations in SendGrid to trigger on contact creation or field updates. Send a welcome email immediately, add them to a nurture sequence, or notify your sales team via webhook. LeadSync gets the lead to SendGrid fast enough that your automations fire within seconds.

Go Beyond SendGrid: Multi-Channel Lead Routing

SendGrid email is powerful, but your Facebook leads deserve more channels. LeadSync syncs Facebook leads to a growing ecosystem of platforms—so you can reach prospects where they’re most engaged:

• Email nurture: How to Send Facebook Lead Ads to Email
• Slack alerts: Get Instant Slack Notifications for Facebook Leads
• Google Sheets tracking: Sync Facebook Leads to Google Sheets
• SMS follow-up: Send SMS to Facebook Leads

Combine these channels—send an email welcome sequence via SendGrid while simultaneously alerting your sales team in Slack and saving a backup in Google Sheets.

Frequently Asked Questions

Can I sync leads to multiple SendGrid lists?

Yes. Create separate LeadSync connections for each SendGrid list, and route different Facebook lead forms to different lists. This is useful if you run multiple campaigns and want to keep audiences segmented by campaign or product.

What happens if a lead submits the form twice?

LeadSync upserts the contact. If the email matches an existing SendGrid contact, the lead’s information is updated (not duplicated). This prevents your SendGrid list from bloating with duplicate entries.

How quickly do leads sync from Facebook to SendGrid?

Typically 5-10 seconds. After someone fills out your Facebook lead form, LeadSync fetches the data from Meta, validates it, and pushes it to SendGrid. You’ll see the contact appear in your SendGrid list almost immediately.

Can I map custom Facebook form fields to SendGrid custom fields?

Yes. When setting up your LeadSync connection, you’ll see all the fields your Facebook lead form captures. Map any custom field (budget range, company size, job title, etc.) to a corresponding SendGrid custom field. This unlocks advanced segmentation in SendGrid.

What if I don’t know my SendGrid list ID?

No problem. When you paste your SendGrid API Key into LeadSync, we automatically load all your available lists. Just pick one from the dropdown. You don’t need to know the ID—LeadSync handles it behind the scenes.

Does LeadSync store my SendGrid API Key?

Your API Key is stored securely in LeadSync’s encrypted database. We never share it with third parties or log it in plain text. If you want to revoke access, delete the connection in LeadSync and generate a new API Key in SendGrid. Your SendGrid account controls the key—you’re always in charge.

Can I sync leads from other ad platforms to SendGrid via LeadSync?

Yes. LeadSync supports Facebook, Google Ads, LinkedIn, and TikTok lead forms. Each platform’s leads sync to the same SendGrid list with the same field mapping. This is ideal if you run ads across multiple channels—all leads flow into one SendGrid list for unified nurturing.

What’s the difference between LeadSync and Zapier?

Zapier charges per task ($20-30/month for SendGrid integration) and adds latency. LeadSync is built specifically for lead routing—faster, one flat rate, no per-lead fees, and no third-party bloat. For Facebook leads to SendGrid, LeadSync is simpler and more reliable.

Is there a free trial?

Yes. LeadSync offers a 14-day free trial. No credit card required. Build your integration, test with real leads, and experience the speed and simplicity of LeadSync before committing.

Start Syncing Facebook Leads to SendGrid Today

Your Facebook lead forms are a goldmine of intent-rich prospects. SendGrid is the engine for nurturing them into customers. LeadSync connects the two in seconds, with zero manual work and full field mapping built in.

Try LeadSync free for 14 days—no credit card, no setup fees. Start your free trial today.