An AI shopping answer can get one specification right and another wrong. A useful correction should keep the detail the catalog supports. In our synthetic Vouchmark demo, a TV answer claims HDR10+ picture support and a 120Hz refresh rate. The catalog lists HDR10 and 120Hz. Vouchmark corrects the HDR claim and retains the refresh rate. For catalog teams reviewing shopping copy, ask for three things for each checked claim: the original wording, the catalog value and the decision. That makes it clear what changed and why a detail stayed in the answer. This example uses a prepared draft with supplied claims and a synthetic catalog. It demonstrates the catalog check, not live AI model accuracy. #Ecommerce #ProductCatalog #ConversationalCommerce #ProductData