Capturing your audience into HubSpot (Signal Sync)

What this does

When a Signal finds someone engaging with content you're monitoring, Signal Sync does one of two things:

If they already exist in HubSpot — their engagement is written as a note on their existing contact timeline. No duplicate created. Their record gets richer.

If they're new to HubSpot — a fully-enriched contact is created with 65+ fields, verified email, verified mobile number, and their engagement history. Optionally assigned to an owner, added to a list, and enrolled in a sequence — automatically.

This distinction matters. Signal Sync isn't just a lead generation tool — it's a way to make sure every meaningful engagement with your content is captured and contextualised in your CRM, whether the person is already in your pipeline or completely unknown.

The most popular use case: your own content

The most common Signal Sync setup monitors your own brand's posts and your team's posts. Anyone who reacts to or comments on your content is captured:

• A follower who liked your founder's post last week → now in HubSpot with their full profile

• A prospect who commented on your product announcement → existing contact updated with that note

• A customer who engaged with your case study → CS team can see the signal before renewal

By the time someone fills out a form, you've often already missed the window. Social engagement happens earlier — when they're thinking about the problem, not actively searching for a solution.

Other Signal types that work well

• Competitor posts — capture people engaging with competitor content, signalling they're evaluating options

• Keyword Signals — capture people writing about pain points your product solves

• Hashtag Signals — capture people engaged in your industry community

Setting up Signal Sync on a Signal

Signal Sync is configured on individual Signals — not in the HubSpot integration settings. Any Signal with contact enrichment enabled can push to HubSpot.

Step 1 — Enable contact capture on your Signal

Open a Signal and go to the Configure step (or Export Options). Enable at least one contact capture option:

• Capture Post Author as Contact

• Capture Post Reactions → Save Profile as Enriched Contact

• Capture Post Comments → Save Profile as Enriched Contact

Step 2 — Go to the Integrations step

In the Signal wizard, navigate to the Integrations step. You'll see a grid of connected integrations. Click HubSpot.

Step 3 — Configure HubSpot sync

In the Connect your Signal to HubSpot card:

Create or update people in HubSpot — toggle this on to enable the sync.

Select an Owner (optional) — assign contacts created by this Signal to a specific HubSpot owner.

Add to a HubSpot segment — select an existing list or create a new one. Contacts are added to this list when created.

Enroll in HubSpot Sequence (optional) — automatically enroll new contacts in a HubSpot sequence. Requires Sales Hub Pro+.

Advanced export options:

• Export only verified emails — only push contacts where a verified email was found

• Allow export without email — push contacts even if no email is available

Sync Social Activity to HubSpot — when enabled, every reaction and comment captured by this Signal is written as a note on the matching contact's HubSpot timeline. If the contact already exists in HubSpot, this is how their record stays up to date.

Sync Engagement Counts — maintains running totals of reactions and comments per contact in HubSpot number properties. Select which HubSpot number property to use for reaction counts and comment counts.

Step 4 — Save the Signal

Save the Signal. From the next run, contacts are created or updated in HubSpot as enrichment completes.

Deduplication

Before creating a new contact, the platform checks whether the person already exists in HubSpot by matching their LinkedIn URL and email address against your existing contacts. If a match is found, no duplicate is created — only a note is added to the existing record.

Using AI Agents to qualify before pushing to HubSpot

For high-volume Signals, consider adding an AI Agent before the HubSpot push. The agent can verify ICP fit, score the contact, or write a personalised opener — and only push contacts who pass the qualification to HubSpot. This keeps your CRM clean and protects sequence deliverability.

See the AI Agents collection for prompt examples and setup guidance.