Full Answer

Priority 1 is conversion data: every purchase event must be captured server-side with hashed customer identifiers — email and phone — to power Facebook CAPI event matching and Google Enhanced Conversions. Pixel-based tracking misses 30–60% of these events due to ad blockers and iOS privacy restrictions. Server-side tracking through the Transmute Engine closes that gap immediately and improves Event Match Quality scores, which directly affects how well Meta and Google can find similar customers. Priority 2 is the pre-purchase journey: add-to-cart, checkout-initiated, and product-viewed events reveal where customers drop off and which products drive intent but not conversion — critical for retargeting sequences and Klaviyo abandonment flows. Priority 3 is attribution data: UTM parameters and session source data that connect each purchase back to a specific campaign, ad set, or channel. Without this layer, you know what customers bought but not what caused them to buy. Together, these three event types create the minimum viable data tree — clean enough for AI tools to start learning, rich enough to generate the first actionable insights within 90 days of planting.