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Upstack Data

Shopify to Klaviyo

Forward every Shopify event to Klaviyo server-side, resolved to a person against a 750M+ device graph — so flows trigger on a known profile rather than an anonymous session.

What changes

What changes when Shopify feeds Klaviyo.

Recover carts you couldn’t email

Anonymous browsers are resolved to a known profile, so abandonment flows can trigger for visitors Klaviyo never identified.

Profiles, not sessions

Events arrive attached to a resolved customer, so flow logic and segmentation work on a person.

100% of conversions, server-side

Orders are captured from Shopify’s servers, so nothing is lost to ad blockers, ITP or a failed browser call.

Recognise returning customers

Shopify customer IDs, emails and phones are matched against the graph, so repeat buyers are identified across devices.

What actually moves

What Shopify carries, and what Klaviyo needs.

Shopify and Klaviyo describe a customer with different vocabularies. This is the mapping Upstack applies on the way through — the left column is what Shopify can put on an event, the right is what Klaviyo can actually use.

Shopify sends

order_id
Shopify order and checkout token
email / phone
customer contact from checkout
customer_id
Shopify customer record, if they have one
line_items
products, variants and quantities
total / subtotal / discount
order economics
customer_type
new or returning, resolved before send

Klaviyo receives

email / phone
the profile key — no profile, no send
external_id
tie a browse to a known person
$value
flow and campaign revenue attribution
event properties
what the flow branches on

Sending you can audit

How you know it is working.

Messaging mistakes are expensive and public. These controls exist so a flow never fires against a profile that should not have received it.

  • Per-profile inspection

    Trace any event to the profile it resolved to, and see why.
  • Deduplication

    One order produces one event, so a single purchase cannot trigger the same flow twice.
  • Bot and fraud filtering

    Automated traffic never becomes a profile, so list quality and deliverability are not paying for it.

Where to check in Klaviyo

KlaviyoAnalyticsMetrics. The event appears as its own metric, and the profile count on it is the number you were losing before.

Get Shopify talking to Klaviyo.

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