Once the code is inserted and saved, refresh the GSDT to run the test again to ensure that the product schema and aggregateRating is showing up well. There should not be any errors present in the schema In cases where metafield is not present in a Shopify store (syndicated stores) A different set of rich snippet codes needs to be installed, which rely on pulling the review data from widget directly instead of the Shopify metafields:

Storz & Bickel Large Drip Pad Set

Regular price $10.00 Sale price $9.00 Save $1.00
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Storz & Bickel Large Drip Pad Set

The Drip Pad set by Storz & Bickel is intended for use Volcano Classic, Volcano Hybrid, and Plenty vaporizers. The stainless steel Drip Pad provides the optimal surface for efficient vaporization of liquids and oils. The Drip Pad can absorb up to 10 drops at a time, but it is recommended to start with the least amount of liquid until the optimal flavor is achieved.

Each set contains 2 liquid pads.