Email & Retention
Klaviyo can report a large amount of attributed revenue because its attribution asks whether an email or SMS interaction happened within the configured window before purchase. That is not the same as proving the message caused the sale.
A loyal customer may:
Email, Meta and Google can all have a legitimate attribution claim under their own rules.
Review Klaviyo's current click/view attribution windows and reporting definitions. Platform defaults and features can change, so use current documentation.
If Klaviyo claims 45% of revenue, Meta 50% and Google 40%, the business did not generate 135% of its Shopify sales. Attribution overlaps.
Holdout testing, send-frequency tests and flow experiments can help estimate whether specific email activity produces additional orders rather than only receiving credit.
The Klaviyo number is useful for comparing email activity under a consistent model. It should not be interpreted as perfectly exclusive channel revenue.
If your email attribution looks too good to reconcile with Shopify and paid media, contact us. We can help build a clearer cross-channel view.