Pinterest has a fairly blunt message for brands struggling with shopping ad performance: stop immediately blaming the campaign. Recent Pinterest catalog updates may also be having an impact on campaign results.
The problem might be sitting inside the product catalog.
In new guidance for advertisers, Pinterest says incomplete product information, weak titles, outdated prices, missing images, and limited tracking signals can prevent its systems from matching products with the right shoppers.
Changing bids will not fix a catalog that Pinterest barely understands.
That is the basic argument behind the platform’s latest shopping recommendations, which encourage brands to clean up their feeds before moving budgets around or rebuilding campaigns.
Pinterest Catalog Updates Can Affect Product Discovery
Pinterest uses a brand’s product catalog to understand what it sells, who might want those products, and when they should appear in search results or advertising auctions.
That makes the catalog more than a database sitting behind an online store.
It acts as the information layer feeding Pinterest’s shopping system. When fields are missing or descriptions feel vague, the platform has fewer clues to work with. Even a visually strong advertisement can struggle when the product data behind it is thin.
Pinterest says advertisers should regularly update product prices, stock availability, descriptions, images, and other relevant details. Brands should also upload their full catalog instead of only selecting a small collection of hero products.
The advice sounds basic. Plenty of brands still get it wrong.
Better Product Titles Could Improve Pinterest Ad Performance
Pinterest is also pushing advertisers to rethink how they write product titles.
A short internal product name may make sense inside a retailer’s inventory system. It may mean almost nothing to someone searching Pinterest for an outfit, home decoration, gift, or seasonal purchase.
Pinterest recommends including the brand name, product type, and at least one useful detail. That detail could describe the pattern, material, color, audience, occasion, or intended use.
Instead of listing something as “Women’s Dress 1045,” a retailer might use a phrase such as “Brand Name Floral Summer Wedding Guest Dress.”
That title gives Pinterest more context. It also sounds closer to the language a shopper might actually type.
According to Pinterest, titles containing brand keywords have been associated with 28% higher return on ad spend. Titles using pattern-related keywords have been associated with 22% higher return on ad spend.
Those figures do not mean adding keywords will automatically rescue a weak campaign. They do show why product naming deserves more attention than it usually gets.
Complete Product Details Give Pinterest More Signals
Product titles are only one part of the feed.
Pinterest wants advertisers to fill in descriptions, prices, availability, product IDs, and image fields as completely as possible. Brands should also review catalog diagnostics and fix errors, starting with products that already generate the most sales.
Seasonal changes matter here.
A product description written in January may not reflect how shoppers search for the same item in June. Pinterest recommends using search behavior and trend data to refresh titles, descriptions, and creative when consumer interest changes.
This turns catalog maintenance into an ongoing marketing task rather than a one-time technical setup.
A feed cannot be uploaded, forgotten, and expected to perform forever.
Pinterest Wants Advertisers to Improve Conversion Tracking
Pinterest also needs to know what happens after someone clicks an advertisement.
A campaign that tracks page visits but misses add-to-cart actions or purchases gives the system a distorted view of performance. Pinterest might find people willing to click without learning which users are more likely to buy.
The company recommends combining the Pinterest Tag with its Conversions API. It says advertisers using both tools saw an average 9% improvement in cost per acquisition and 23.7% more attributed conversions compared with advertisers using the tag alone.
Product IDs passed through conversion events should also match the IDs stored in the catalog. Otherwise, Pinterest may struggle to connect a purchase with the exact product that generated it.
Advertisers should check Ads Manager to confirm that key events are firing correctly and reporting realistic values.
Not glamorous work. Still important.
Smaller Product Groups May Limit Pinterest’s Learning
Retailers often divide their catalogs into highly specific product groups.
That can feel organized. It can also leave Pinterest with too little data inside each group.
Pinterest says shopping campaigns tend to perform better when product groups contain enough stock-keeping units, or SKUs, for the system to identify meaningful patterns. The platform recommends aiming for at least 500 SKUs in an ad group where possible.
Ad groups containing fewer than 100 SKUs have been associated with 13.6% lower return on ad spend, according to Pinterest.
That does not mean every retailer suddenly needs hundreds of new products. Smaller brands may not have that kind of inventory.
The broader point is to avoid dividing an already limited catalog into dozens of tiny segments. Brands can merge similar product groups when they share the same budget, goal, or bidding strategy.
Fewer groups. More useful data.
Pinterest Shopping Campaigns Need Time to Learn
Pinterest users do not always buy immediately.
Someone might save ideas for a wedding, home renovation, holiday, school year, or major purchase weeks before spending anything. That planning behavior makes Pinterest different from platforms built mainly around instant reactions.
Constantly pausing and rebuilding campaigns can interrupt the learning process.
Pinterest says shopping campaigns running for six months or longer have delivered roughly 25% higher return on ad spend. Campaigns running for less than three months recorded ROAS reductions of between 5% and 16% compared with the average.
The platform recommends keeping a small number of core shopping campaigns active throughout the year. Advertisers can rotate promotions and seasonal creative without repeatedly starting from zero.
That requires patience, which is often the first thing advertisers lose when results dip.
Prices Must Match From Pinterest Pin to Checkout
A polished product Pin cannot compensate for a confusing checkout experience.
Pinterest says brands should check whether the price, image, promotion, and product information shown in an advertisement match what appears on the product page and at checkout.
Unexpected price changes or hidden charges can quickly damage trust.
Mobile performance matters too. A shopper who discovers a product inside the Pinterest app may abandon the purchase if the retailer’s website loads slowly, hides shipping information, or makes checkout unnecessarily complicated.
Pinterest recommends reviewing the entire purchasing path for top products at least once a month. That means opening the advertisement, visiting the product page, adding the item to the cart, and completing the checkout process as a customer would.
It is the kind of test companies assume someone else has already done.
Sometimes nobody has.
What Pinterest’s Catalog Advice Means for Brands
Pinterest’s latest advice is not really about flashy advertising tactics.
It is about foundations.
Brands need accurate product information, titles written around real search behavior, stronger conversion tracking, useful product group sizes, longer campaign timelines, and a consistent journey from Pin to purchase.
None of those changes guarantees stronger sales.
Together, though, they give Pinterest more information to understand products, identify high-intent shoppers, and learn which activity leads to actual purchases.
Before increasing the budget, brands may need to open the catalog.
The weak link could already be there.