Data prep (Tableau Prep)
Tableau Prep is sold as part of the Creator licence, but the real data prep that scales lives outside the tool — and most teams end up paying for both.
What people actually say
✕Vendor guides note Tableau organisations routinely budget separately for 'data preparation tools' on top of the Creator seat that bundles Prep — Prep alone rarely covers the modelling layer real warehouses need.
Source: Toucan Toco, hidden costs of Tableau ↗✕Hidden cost analyses identify $30,000-$80,000 of upfront semantic-model development as an under-reported line item when standing Tableau up on a modern warehouse.
Source: Digital Mass, Hidden Costs of Tableau 2026 ↗✕Tableau Data Management (the governed catalog / lineage add-on that Prep alone doesn't replace) is a separately licensed extension priced on top of Creator.
Source: Tableau pricing page ↗
Prep flows become dbt models in your repo, version-controlled and tested. Orchestration runs in Dagster or Inngest against your warehouse; the semantic layer is dbt's metric definitions, not a proprietary catalog. One stack does prep, transform and docs — no second SKU for lineage.