There are several types of CSS Partners. First of all there is the "Active CSS", this is a CSS that does not meet the strict requirements of Google and therefore is not a Google CSS Partner. Support with this "Active CSS" is minimal. In addition, there is a CSS Partner: this meets the minimum Partner requirements of Google: there are Google Ads certified employees (both Google Fundamentals and Google Shopping exam must be passed), at least 100 customers must use Google CSS and there are requirements regarding the price comparison website (at least 50 connected customers, specific requirements regarding search and filter functions, etc.). A Google CSS Premium Partner meets even stricter requirements and has a minimum of 500 connected customers. This not only concerns 500 customers who are visible on the price comparison website, it concerns 500 customers who have at least been switched within Google Shopping (with a Merchant Center switch). As of March 2022, only CSS Partners belonging to the top 25% best performing CSSs may call themselves a Premium CSS Partner. Bigshopper meets all strict requirements and has been a Premium Partner since August 2018. The advantage of a Premium Partner compared to a normal Partner is that there is extra support and that Premium Partners are also invited for specific workshops. If you would like to check the differences, you can do so on the Google CSS Partners page: https://comparisonshoppingpartners.withgoogle.com/.