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For a specialty retailer (~380 stores, 2.4M loyalty members), S3 Tables Iceberg silver plus Kinesis cart events cut dashboard refresh from 26 hours to 22 minutes — conversion reporting error dropped from 11% to 2%.
QuickSight isn't a Looker or Tableau replacement — but for analytics bolted onto the AWS data plane, it's the path that doesn't require a new vendor contract. Data sources, SPICE performance, embedded analytics, row-level security, and dashboards that survive scale.
Half the natural-language BI demos fall apart on real schemas. A July 2026 deployment playbook for Generative BI Topics on QuickSight / Quick Sight — RLS, adoption metrics, and how this fits Amazon Quick Suite without confusing it for Q Business.