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CPM Difference Between 2 Catalogs
Got 2 shared catalogs for third party ecommerce sites (example Amazon and Ebay).
Selling the same brand/products, with more or less the same ads and creatives. Running catalog sales and directing traffic and purchases to their sites.
However overall CPM of one is significantly higher than the other by almost 2x. Not sure why, looking for a way to improve the underdog. Will appreciate suggestions.
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