Specifies the outcome of rendering a recommended item, passed to RecommendationService:LogImpressionEvent() to indicate whether the item was shown to the user.

RecommendationImpressionType is used as the impressionType argument to RecommendationService:LogImpressionEvent(). It tells the Roblox recommendation backend whether a given item was successfully rendered on the client (RecommendationImpressionType.View) or whether a rendering error prevented the user from seeing it (RecommendationImpressionType.NotViewable). The backend uses NotViewable as a negative signal when ranking future recommendations.