The CDP Reckoning: Composable Catches the All-in-One
The debate is no longer two architectures. It's a promise — your data stays in the warehouse — colliding with a duplication reality nobody priced in.
The CDP market just had its correction. In Gartner's 2026 Magic Quadrant, Salesforce remains the lone incumbent Leader — but Hightouch, a pure composable player that activates directly on the warehouse, enters as a Leader, positioned highest in Ability to Execute. At the same time ActionIQ, mParticle, Redpoint, Zeta, and Treasure Data dropped out or slid back. And in May 2025, Fivetran acquired Census, the reverse-ETL pioneer. The signal is unambiguous: the activation layer is commoditizing, and the value is migrating into the warehouse.
For a martech team, the decision is no longer "which CDP do we buy" but "where does our customer truth live." The all-in-one offers a proprietary store that re-ingests and duplicates your data. The composable approach leaves the warehouse — Snowflake, BigQuery, Databricks — as the single source and builds identity and activation on top.
All-in-one sells convenience, not ownership
The all-in-one CDP won on convenience: collection, unification, and activation in one console. The price of that convenience is lock-in. Your resolved profiles, your audiences, your identity logic all live with the vendor. The day you want out, you don't get a model back — you get an export. For organizations that already sank millions into a cloud warehouse, duplicating the entire customer dataset into a second system has become impossible to defend in a budget review.
Composable isn't free either
But the composable marketing line — "data never leaves the warehouse" — is partly false, and it's the point technical leaders need to stare at directly. Reverse ETL copies personal data into every downstream tool on every sync. A typical mid-market composable stack duplicates personally identifiable information across four to six vendor boundaries. Under Quebec's Law 25, each of those boundaries is a disclosure to a third party that needs a consent basis and widens your liability surface. "Composable" does not mean "contained."
Identity is the real dividing line
The decisive question is neither collection nor activation — it's identity resolution. Who owns the graph? With Salesforce Data Cloud's zero-copy architecture, the engine queries data where it lives: over 4 trillion records queried in six months without moving any of it. Adobe Real-Time CDP, by contrast, doesn't persist external datasets and so can't unify them into the profile. That technical nuance is actually a governance nuance: the system that resolves identity is the system that carries the regulatory risk.
The decision to make
Pick the warehouse as your system of truth if you've already invested there and your data team can model. Pick the all-in-one if speed to market wins and you accept the lock-in. But pick no vendor until you've mapped, boundary by boundary, where your PII lands and under what legal basis. Hightouch's organic growth — 7.8% versus the market's 1.3% — tells you where the wind is blowing. It does not tell you composable is debt-free. It simply moves the debt from the license line to the governance line.