The 2026 season doesn’t start in a specific month. It starts the moment an e-shop begins planning.

E-shops that achieve the best seasonal results leave nothing to chance. They don’t wait until the final weeks before the main sales period. Instead, they work with data, test campaigns in advance, and use tools that give them a competitive advantage long before ad inventory becomes overcrowded.

According to Google, consumers are preparing for seasonal purchases significantly earlier than in the past. They search for products, compare prices, and save offers months before making the actual purchase. This means that visibility in Google Shopping and campaign efficiency are decided before the seasonal peak, not during it.

That’s exactly why preparing for the 2026 season is a topic worth addressing today. In this article, we’ll look at how to approach it systematically and how a CSS partnership with Shopping in EU can help reduce costs and increase campaign performance.

Why it pays to prepare for the 2026 season

Seasonal campaigns are no longer a short, intense period. The customer journey has become significantly longer, with shoppers moving through multiple decision-making phases from initial inspiration, through comparison, to the final purchase. Google has long pointed out that this process starts earlier and takes place across multiple channels.

Why it pays to prepare for the 2026 season in advance

In practice, this means that competition in Google Shopping grows gradually and with it, cost per click. E-shops that only start working on campaigns when performance pressure increases often pay more, lack sufficient data, and are forced to make rushed decisions under stress. By contrast, those who prepare and optimize campaigns continuously throughout the year enter key periods with a head start and more stable performance.

A CSS partner as a performance advantage, not a technical detail

A CSS partnership is one of the simplest ways to increase the efficiency of Google Shopping campaigns without increasing budget.

For an e-shop, this means advertising via a CSS partner instead of directly through Google. The key difference is that, in this model, Google’s margin is not applied before entering the auction. The result is lower cost per click – often up to around 20% in practice.

Lower CPC allows an e-shop either to gain more clicks with the same budget or to achieve better auction positions without increasing spend. Especially during peak season, when competition is at its highest, this difference can be decisive for campaign results.

How does CSS affect campaign performance in practice?

The benefits of a CSS partnership are also confirmed by real campaign data. When comparing Performance Max campaigns run via CSS Shopping in EU, lower average CPC and more efficient budget utilization were observed while maintaining the same campaign objectives.

A detailed comparison of results, including data and methodology, can be found in this case study.

The results show that a CSS partnership is not just an administrative account setting change, but a practical tool with a direct impact on campaign performance – especially during periods of increased competition.

Practical e-shop preparation for the new season

Preparation should also include technical and content optimization. Product feed quality plays a key role in the performance of Google Shopping campaigns. Proper product titles, accurate categorization, consistent pricing and availability, and completed identifiers increase ad relevance and help reduce unnecessary costs.

Performance Max campaigns are now another essential pillar of seasonal strategy. Google presents them as the core format for performance marketing, combining Shopping, Search, YouTube, and remarketing into a single solution. With well-prepared inputs, they can reach customers at different stages of the buying journey and flexibly manage budgets throughout the entire season.

When combined with a CSS partner, Performance Max creates a strong foundation on which a successful seasonal strategy can be built.

Conclusion

The 2026 season belongs to prepared e-shops…

The 2026 season won’t be about who spends the most on advertising, but about who has the better strategy, higher-quality data, and a more efficient advertising setup. Early preparation, optimized feeds, Performance Max campaigns, and a CSS partnership form a combination that gives e-shops a real competitive advantage.

If you want to enter the 2026 season with a head start and get the most out of your Google Shopping campaigns, a CSS partnership with Shopping in EU is one of the steps worth taking today.

Book a free consultation on our website with our specialists, who will answer all your questions and explain the CSS partnership down to the smallest detail.