Vertex Search for Retail Limits

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1

What are the limits for the following in vertex search for retail:

  1. Number of unique product attributes across the catalog? In document its mentioned as 200 attributes/product. Can each product have its own unique 200 attributes?

  2. What is the maximum number of facet values for the entire catalog? In document it’s mentioned as 400 values/product.
    And 300 is the maximum number of facet values that can be returned as part of the search response. What if there are 5000 facet values for a facet? Is it possible to increase the 300 limit to say 3000 ?