Extracting Associated Contact Information from HubSpot Deal Records

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1

I have a Zapier automation that triggers when a HubSpot deal reaches a particular pipeline stage. The webhook sends deal data to my server, but I need to access the linked contact details like email address and full name.

Looking at the deal payload I receive, I can see there’s a field showing num_associated_contacts: '1' which tells me a contact is connected, but I don’t see the actual contact information in the response.

Here’s what my webhook receives:

{
    'opportunity_id': 'abc123',
    'opportunity_name': 'Sarah Wilson - Premium Package',
    'stage': 'qualified_prospect',
    'amount': '5000',
    'created_date': '1642851200000',
    'modified_date': '1642937600000',
    'owner_id': 'user789',
    'source': 'WEBSITE',
    'probability': '0.75',
    'is_active': 'true',
    'contact_count': '1',
    'last_activity': '1642934400000',
    'pipeline_name': 'sales_pipeline',
    'portal_id': 'hub456'
}

What’s the best approach to retrieve the contact data that’s associated with this deal record?

2

zapier’s got a built-in hubspot action called “get associated contacts” that’ll do exactly what you need. just add it right after your webhook trigger and pass the deal id - way simpler than building api calls from scratch. i’ve been running this setup for months with zero problems.

3

Hit this exact problem six months ago with my lead management setup. HubSpot’s webhook data is pretty bare-bones by default - super annoying when you need the full picture.

Here’s what fixed it for me: go back to your HubSpot trigger in Zapier and customize which properties get sent in the webhook payload. You can add contact fields right there instead of making separate API calls later. Saves a ton of hassle.

If you’re still missing data, try switching to a trigger that grabs both deal and contact info at once. Cut my server load way down compared to hammering the API every time a deal updates.

4

To retrieve the contact details associated with a HubSpot deal, you’ll need to utilize the Associations API. The current webhook payload provides deal information only, so start by taking the opportunity_id from the webhook response. Make a GET request to /crm/v4/objects/deals/{dealId}/associations/contacts to extract the contact IDs linked to the specific deal. Once you have these IDs, you can then call /crm/v3/objects/contacts/{contactId} to fetch the details you need, such as first name, last name, and email address. Alternatively, if you’re looking for a more straightforward approach, consider adding a “Find Contact” action within your Zapier configuration, which could simplify the process and reduce the number of API calls necessary for your server.