How Do You Track Conversions on Pinterest Ads?

Pinterest Ads conversions are tracked by running two systems together: the browser-based Pinterest Tag and the server-side Conversions API (CAPI), deduplicated with a shared event ID so each conversion counts exactly once. Pinterest's official developer documentation and 2026 Business Help resources recommend the two running in parallel rather than choosing one over the other, since each catches conversions the other one misses.

Step One: Claim Your Website

Before installing any tracking, Pinterest requires you to claim your website, which verifies ownership and prevents other advertisers from attributing conversions to your domain. Pinterest supports three verification methods: uploading an HTML file to your site's root directory, adding a meta tag to your homepage's head section, or adding a TXT record to your domain's DNS settings.

Installing the Pinterest Tag

The Pinterest Tag is generated in Ads Manager under the Conversions section. It consists of two pieces of JavaScript: a base code that goes on every page of your site and fires a PageVisit event automatically, and event codes that go only on specific action pages — a purchase confirmation page, a lead form thank-you page — and must fire after the base code has already loaded.

Pinterest's Business Help documentation currently lists 20 supported event types, including PageVisit, AddToCart, Checkout, Signup, Lead, Search, ViewCategory, WatchVideo, and Custom, giving advertisers granular control over which on-site actions get reported back as conversions.

Adding the Conversions API

The Conversions API sends conversion data directly from your server to Pinterest, bypassing the user's browser entirely. To set it up, go to Events Manager inside Ads Manager to find your Ad Account ID — a required parameter on every API call — then go to Business Settings, select Conversions, and generate a Conversion Access Token with the appropriate permissions.

Why Deduplication Matters

Running the Pinterest Tag and CAPI simultaneously without deduplication would report the same real-world conversion twice — once from the browser, once from the server. Pinterest's 2026 setup guidance solves this with a shared event ID: when both the tag and the API send an event carrying the same ID, Pinterest's system recognizes them as the same underlying conversion and counts it once. Skipping deduplication inflates your reported conversion volume and distorts the cost-per-conversion numbers you'd otherwise use to judge campaign performance.

Enhanced Match Improves Attribution Further

On top of the tag and CAPI, Pinterest's Enhanced Match feature hashes first-party customer data — email address, phone number — collected on your site and sends it alongside conversion events, giving Pinterest a stronger signal to match a conversion back to the specific ad interaction that drove it, particularly on browsers that block or limit third-party cookies. Enhanced Match is layered on top of the tag and CAPI rather than replacing either one, and 2026 setup guides recommend enabling it wherever your checkout or lead-capture flow already collects that customer data.

Checking Data Quality

Once both are live, Ads Manager's Conversions Health page shows match rate and event volume, which is the fastest way to confirm the tag and CAPI are both firing correctly rather than assuming setup worked because no error appeared during installation. A low match rate on that page usually points to missing Enhanced Match data or event codes that aren't firing on the right pages, not a platform-side reporting issue.

Bottom Line

Claim your domain first, then install the Pinterest Tag's base code sitewide and event codes on your key action pages, then layer the Conversions API on top using a shared event ID between the two — that combination is Pinterest's current standard for accurate conversion measurement in 2026, not the tag alone.