Connect your store

Connect Klaviyo

Klaviyo gives HI Engine your campaign and flow performance, so email and on-site work can be judged together.

Klaviyo is optional. Connect it when email is a meaningful share of your revenue, and you want ideas that cover both the storefront and the inbox.

Create a read-only API key

Open API keys in Klaviyo

In Klaviyo, go to Settings → Account → API keys.

Create a private key

Click Create Private API Key. Name it HI Engine.

Choose Custom key and grant Read access to these scopes:

ScopeAccess
CampaignsRead
FlowsRead
MetricsRead
Lists and segmentsRead
ProfilesRead

Do not grant write access. HI Engine never sends a campaign, edits a flow, or changes a profile.

Paste it into HI Engine

Open Connections → Klaviyo, paste the key, and click Connect. HI Engine runs a test read and marks the connection active.

What HI Engine reads

  • Campaign sends, opens, clicks and attributed revenue.
  • Flow performance, by flow and by message.
  • List and segment sizes over time.
  • The metrics Klaviyo tracks for your store, such as Placed Order and Viewed Product.

Typical findings

  • A flow that stopped sending after a template change.
  • An abandoned-cart flow whose first message goes out too late.
  • A segment that grew while its revenue per recipient fell.
  • A campaign whose landing page contradicts the email's offer.

The last one is why Klaviyo is worth connecting: it lets HI Engine compare what the email promises with what the page delivers.

Revoking access

Delete the private key in Klaviyo under Settings → Account → API keys. The connection in HI Engine moves to an error state on the next read.

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