Retail API: View search performance tiers and performance upgrade requirements
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## Feature
**Retail API: View search performance tiers and performance upgrade requirements**
Text query search and browse search have different performance tiers that increasingly improve your search results. Unlocking performance tiers relies on the user event and catalog data that you upload to Retail. The Retail console provides a **Data Quality** page where you can check if you have met each tier's data requirements.
For documentation about search performance tiers and how to check data requirements, see [Unlock search performance tiers](https://cloud.google.com/retail/docs/data-quality).