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Lasso Commerce PostHog

Send every Lasso Commerce event to PostHog, server-side

Each event is resolved to a person against a 750M+ device graph before it reaches PostHog, so records and reporting reflect the person, not the device.

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US device IDs in the graph
750M+
Match rate on events
90%+
Identity window, per customer
Lifetime
Most brands are live
<20 min

How it flows

How a Lasso Commerce event reaches PostHog. Captured on the server, resolved to a person, then sent.

01 Capture

Captured from Lasso Commerce

Capture Lasso Commerce checkouts and upsells server-side, so orders that never touch a storefront page are still resolved and forwarded.

See the Lasso Commerce integration
Lasso CommerceWhat it sends
  • order_idLasso checkout order reference
  • email / phonecontact captured at checkout
  • line_itemsproducts and quantities on the order
  • total / discountorder economics after adjustments
  • landing_domainthe site the shopper started on, before the checkout hop

02 Understand

Resolved to one person before it leaves

Every Lasso Commerce event is matched against a 750M+ device graph, so a phone browse and a desktop checkout resolve to one customer rather than two strangers.

How resolution works
Upstack DataResolved before it is sent
  • IdentityMatched against a 750M+ device graph, so a phone browse and a desktop checkout resolve to one customer.
  • customer_typeNew or returning, resolved before send.
  • DeduplicationOne person, one record, across devices and identifiers.
  • Bot and fraud filteringAutomated traffic never becomes a contact.

A CRM is only as trustworthy as its worst duplicate. These controls exist so the record reflects the person.

03 Activate

Delivered to PostHog

Stream resolved product and commerce events into PostHog for analysis on a person, not a session.

See the PostHog integration
PostHogWhat it receives
  • distinct_idthe person, across devices
  • event name and propertiesfunnels and retention
  • $set person propertiesuser-level attributes

Which events reach PostHog

Each Upstack event is mapped to the PostHog event below before it is sent.

Upstack eventSent to PostHog as
Page view$pageview
Product viewview_item
Add to cartadd_to_cart
Checkoutinitiate_checkout
Purchasepurchase

Each event carries Upstack’s resolved distinct_id, which persists across sessions, plus email when the visitor is identified, IP address, user agent and device details.

The catch

The landing domain and the checkout domain produce two different session records for one customer.

A CRM loading both without resolution ends up with duplicate contacts that never merge.

Where to check in PostHogRecords you can audit

PostHog Activity

then check that a single person shows events from more than one device.

What changes

What changes when Lasso Commerce feeds PostHog. Two gains on the PostHog side, two on the Lasso Commerce side.

PostHog

Server-side delivery

Upstack always sends events to PostHog from its servers as well as through the PostHog snippet, so an event an ad blocker or browser privacy setting stops in the browser still arrives from the server.

PostHog

Identity-resolved events

Events sent to PostHog carry the resolved customer whenever Upstack can identify one, matched against a 750M+ device graph.

Lasso Commerce

Every event, server-side

Storefront and checkout events are captured from Lasso Commerce on the server, independent of the browser.

Lasso Commerce

One setup, every destination

Connect Lasso Commerce once and forward to every ad platform, email tool and warehouse you run.

Setup

Live in under 20 minutes.

You need your PostHog Project API Key from Project Settings and the data region, US or EU, where your project is hosted.

Upstack dashboardExample
Lasso Commerce Data source Connected
PostHog Destination Healthy
Read the full PostHog setup guide

  1. 01

    Connect Lasso Commerce

    Capture Lasso Commerce checkouts and upsells server-side, so orders that never touch a storefront page are still resolved and forwarded.

  2. 02

    Add the PostHog destination

    Under Destinations, add PostHog with your Project API Key, which starts with phc_, and the Data Region (US or EU) that matches where your PostHog project is hosted.

  3. 03

    Check Live Events in PostHog

    Visit your store, view a product or add to cart, and confirm the event appears in PostHog under Activity, Live Events.

FAQ

Questions about Lasso Commerce and PostHog.

How does Upstack identify users in PostHog?

Upstack assigns each visitor a consistent distinct_id that persists across sessions, devices and browsers when it can resolve the visitor’s identity. Anonymous visitors get a temporary ID that Upstack tries to merge once the visitor is identified.

Will I see duplicate events if I also have PostHog installed via another method?

Possibly. If PostHog’s JavaScript snippet or another integration sends the same events, you may see duplicates, so disable overlapping event types in either Upstack or the other integration.

Which events does PostHog receive?

PageView as $pageview, ViewContent as view_item, AddToCart as add_to_cart, InitiateCheckout as initiate_checkout and Purchase as purchase.

Which customer parameters are sent to PostHog?

Each event carries Upstack’s resolved distinct_id, which persists across sessions, plus email when the visitor is identified, IP address, user agent and device details.

How do I check that Lasso Commerce events are reaching PostHog?

Visit your store, view a product or add to cart, and confirm the event appears in PostHog under Activity, Live Events.

How long does it take to connect Lasso Commerce to PostHog?

Most brands are live in under 20 minutes. Once Lasso Commerce is connected, every destination receives the same resolved events, PostHog included.

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Get Lasso Commerce talking to PostHog.

A 15-minute walkthrough of this connector on your own account.

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