Having a large product range can be a great thing for an ecommerce brand. More products mean more choice for customers, more opportunities to make a sale and more ways for shoppers to discover your store.
But there is an important difference between having a product available to buy and deciding whether it should receive advertising spend. Imagine a clothing brand selling one jacket in six colours and five sizes. That single product can quickly become dozens of variants.
It might seem logical to advertise all of them. But your advertising budget isn’t unlimited. When every size and colour competes for the same budget, you can end up spending money on variants that attract little interest while your strongest sellers compete for the same attention.
That is where looking beyond the product level becomes useful.
Your Budget Gets Spread Across Too Many Variants
Not every variation of a product performs equally.
A sweatshirt might be available in Small, Medium, Large and XL, but Medium and Large could account for most of its sales. The same pattern can appear across colours, with black consistently outperforming other options.
This creates what could be called variant sprawl: a large number of product variations being promoted even though demand is concentrated around a much smaller group. The result is not necessarily a bad product catalogue. It simply means your advertising strategy may not need to treat every variant equally.
Look at What Actually Sells
Your sales data can reveal patterns that are hidden when you only look at the overall product.
For example, a sweatshirt could have:
- Strong sales in Medium and Large
- Lower demand for Small
- Very few XL sales
- Black as the strongest colour
- A seasonal colour that performs well for only a few months
- One colour and size combination that gets clicks but rarely converts
On paper, these are all variations of the same product. From a commercial perspective, they tell very different stories. That distinction can help you decide where your Shopping budget should go.
Size Can Be a Useful Signal
Size is particularly important for apparel and footwear brands. A product may look successful overall, but that performance can be concentrated in only a few sizes.
If Medium and Large generate most of the orders while Small and XL consistently receive less interest, there may be little reason to give every size identical advertising priority.
That doesn’t mean removing slower sizes from your website. It means recognising that product availability and advertising priority are two different decisions. For larger catalogues, reviewing performance at the size level can reveal opportunities that aren’t obvious from product-level reporting.
Which Colours Perform Best?
Colour is another useful variable to examine. Some colours have consistent demand throughout the year, while others may depend heavily on season, trends or customer preferences.
A black jacket might sell steadily across multiple months, while a bright seasonal colour could have a short period of strong demand. If one colour repeatedly generates stronger sales, that is useful information when deciding where to concentrate Shopping activity.
The less popular options can still remain available on your website. They simply don’t have to receive the same level of paid attention. Understanding which product colours sell best online can therefore help ecommerce brands make more informed Shopping decisions.
Seasonal Products Need a Different View
Not every product should be judged by the same timeframe.
A variant can perform exceptionally well during one part of the year and become much less relevant once that period ends.
Consider:
- Summer and winter products
- Holiday collections
- Seasonal colours
- Limited-edition designs
- Event-specific products
- Weather-dependent products
The mistake is not keeping these products in your catalogue.
The mistake is assuming that a product that performed well last season should continue receiving the same advertising priority all year. Reviewing performance by season can help you recognise when a product deserves more attention and when it is better left with lower exposure until demand returns.
Sales Don’t Tell the Whole Story
A high number of orders doesn’t always mean a variant is commercially strong. Returns can change the picture.
For example, a particular size might generate plenty of sales but also have a significantly higher return rate than other sizes.
That could point towards issues with:
- Fit
- Sizing information
- Customer expectations
- Product photography
- Colour representation
- Product descriptions
The answer isn’t automatically to stop advertising the variant. Instead, return behaviour gives you another reason to investigate before increasing its advertising priority.
Not Every Variant Deserves the Same Priority
Once you look at size, colour, seasonality and returns together, you can start thinking about your catalogue in groups rather than treating every variant identically.
Hero variants
These are products or combinations with a consistent history of strong sales.
They already have evidence behind them and may deserve greater advertising attention.
Promising variants
These have shown some positive signals but don’t yet have enough information to make a confident decision.
Keep testing them and allow more data to build.
Seasonal variants
These should be judged according to the period when customers are most likely to want them, rather than purely on their year-round performance.
Low-demand variants
These consistently attract limited interest or spend without producing enough sales to justify their current level of exposure.
These are the variants worth reviewing first.
Don’t Cut a Product Too Quickly
A weak result doesn’t always mean a product is unsuitable for advertising.
Before reducing its exposure, look at the context.
Ask:
- Is there enough search demand?
- Is the price competitive?
- Does the product page clearly explain the offer?
- Is sizing information easy to understand?
- Is the product seasonal?
- Has the variant received enough traffic to make a reliable judgement?
- Is the return rate unusually high?
This helps distinguish between a genuinely weak product and one that has an underlying issue affecting its performance.
Sometimes the solution isn’t less advertising. It might be better product information, stronger pricing, improved photography or simply giving the product more time to generate meaningful data.
Your Product Feed Can Support Better Decisions
Your product feed is more than a list of everything currently in stock.
It is part of how your catalogue enters Google Shopping, which means the products you choose to prioritise can have a direct impact on where your advertising budget goes.
For a large catalogue, that could mean:
- Giving stronger-performing variants more attention
- Reviewing products with consistently weak results
- Adjusting seasonal products throughout the year
- Investigating high-return variants
- Testing new products before increasing spend
- Reassessing products when customer preferences change
The right approach will vary depending on your catalogue and sales history.
The key is to avoid treating “available to buy” as the same thing as “worth advertising.”
Advertise With More Intention
Reducing advertising exposure for a variant doesn’t mean removing it from your store. Customers can still discover it through organic search, your website, email marketing, direct traffic and other channels. You’re simply deciding where paid advertising is most useful.
This distinction becomes especially important for stores with hundreds or thousands of product combinations. Instead of giving every variation the same level of attention, you can use performance information to determine where your budget has the strongest opportunity.
The Goal Is Better Allocation, Not Fewer Products
The point isn’t to advertise fewer products simply for the sake of reducing your catalogue. It is about making better decisions with a limited budget.
Your strongest products may deserve more attention because they already have a proven sales history. Some variants may need more testing. Others may be highly seasonal, while some may consistently struggle. When you understand those differences, your Shopping strategy becomes more intentional.
Instead of asking:
“Can we advertise this product?”
Ask:
“What evidence do we have that this product deserves our advertising budget?”
That is a much more useful question.
Final Thoughts
A large product catalogue gives ecommerce brands plenty of opportunities, but it doesn’t mean every product or variant needs the same level of advertising support. Size, colour, seasonality, sales and returns can all reveal differences in how your catalogue performs.
The goal is to use those signals to decide where your paid advertising deserves the most attention, while still keeping your wider product range available to customers. You don’t need to advertise everything you sell. You need to advertise the products that give your budget the best opportunity to work.
At BuffYellow, we help ecommerce brands make smarter decisions about Google Ads and their broader e-commerce marketing strategy. If you’re advertising a large product catalogue and aren’t sure whether every product or variant deserves your budget, get in touch with BuffYellow for a 30-minute discovery call. We’ll help you identify where your advertising spend could be working harder.