Hugo Galvao de Franca Filho, founder and director of Enjoy Pets, notes that turning on paid ads for every product in a marketplace catalog feels like the fastest way to increase visibility, and for a new pet store it often is, at least for the first few weeks. Most sellers eventually notice the same pattern: total ad spend rises steadily while total sales barely move at the same pace.
The gap usually comes from treating every SKU as equally worth promoting, when a catalog rarely behaves that way. A handful of products tend to drive most of the actual revenue, and ad budget spread evenly across everything ends up subsidizing clicks on items that were never going to convert well in the first place, no matter how much visibility they get.
Does boosting every listing actually help sales?
Not evenly. Paid placement raises how often a product gets seen, but conversion still depends on the listing behind the click: the photos, the price, the reviews and whether the product answers what the buyer needed to know. Boosting a weak listing mostly buys more impressions of the same weak listing.
A product with blurry photos or a thin review count converts at roughly the same low rate whether it is boosted or not. Hugo Galvao also mentions that the ad spend in that case buys visibility that rarely turns into an order, while the same budget applied to a listing that already converts well tends to produce a clear, measurable return.
How should the budget be split between best-sellers and new products?
Proven SKUs with a sales history deserve the larger share of the budget, since there is already data showing they convert once a buyer sees them. New products can still get a slice of the budget, but they are treated as a capped test meant to gather enough data to decide whether they deserve more, not as an open-ended bet that keeps drawing spend simply because it is already running.
At Enjoy Pets, Hugo Galvao applies that logic by reviewing campaign performance weekly and pulling budget away from tests that are not converting within a set window, rather than letting an underperforming new listing run on autopilot for months.
What happens to ad spend when stock runs low?
Campaigns rarely pause themselves when inventory does. A boosted listing with little or no stock left keeps generating clicks and even orders the seller cannot fulfill on time, which wastes the ad spend and can trigger the same delivery penalties that come from any other unfulfilled order, at a moment when the listing was already spending more than usual to attract that traffic.
The fix is treating stock level as part of the campaign, not a separate system to check manually. Lowering bids or pausing ads automatically once inventory drops below a set threshold keeps the budget pointed at products the store can actually deliver and frees that spend to move toward whichever SKU currently has stock to sell.
When does paid traffic stop being worth it?
Cost per click tends to rise as more sellers compete for the same keywords, which slowly erodes the return on a campaign that once performed well. At the same time, a listing that keeps accumulating reviews and reliable delivery starts earning organic ranking on its own, reducing how much it needs to lean on paid clicks to get seen.
According to Hugo Galvao de Franca Filho, paid traffic works best as a way to build the sales history and reviews a new product needs early on, not as a permanent substitute for a listing that has not yet earned its place in organic search.