Data importHistory and third-party sources

Seven ways in: the JavaScript library, Google Tag Manager, Segment, the server-side API, the mobile SDKs, file upload, and a direct database connection.

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What it is good for

Most analytics starts the day you install it, which means your first cohort analysis has nothing to compare against. Kissmetrics takes history as well as live traffic, so the events you already have in a warehouse, a CSV or another tool arrive against the same people as today’s. One person, one timeline, however the events got here.

Backfilling history so cohorts and retention work from day one
Sending backend events the browser never sees, such as renewals and refunds
Keeping an existing Segment or GTM setup rather than replacing it
Loading one-off data from a CSV or straight from MySQL or Postgres

How different businesses use data import

The report is the same. What changes is the question you point it at.

E-commerce

Backfill order history so the first cohort report is worth reading.

What you set up

CSV of historical orders keyed on email, plus the JS library for live sessions.

What you get to decide

Repeat purchase rate and lifetime value cover the whole customer, not just since install.

Integrations: pushing populations and events to the rest of your stack.

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Free to start, no card. Tracking, attribution and your first dashboard in under a minute.