The real problem: views aren't revenue

Every performance marketeer knows the frustration. You brief a creator, they post, the views roll in, and then you open your affiliate dashboard and see... nothing. A handful of clicks, maybe two conversions. The ROAS is embarrassing. Your stakeholders ask questions you can't answer.

This isn't bad luck. It's a structural mismatch between how most influencers think about content and what e-commerce actually needs. Most creators are trained to optimise for reach and engagement, not for purchase intent. They know how to make content that gets saves and shares. They don't automatically know how to script a CTA that converts, or why a trackable affiliate link matters more than a bio link that disappears after 24 hours.

The platform you choose shapes this dynamic entirely. YouTube, TikTok Shop, and Instagram each create very different conditions for conversion, and picking the wrong one for your product category is one of the fastest ways to burn your influencer budget.

At Zeth, we see this constantly when brands come to us after a disappointing first attempt at creator-driven sales. The platform choice was often the first mistake, before the brief, before the creator selection, before anything else.

Which platform delivers the best influencer ROI for e-commerce?

TikTok Shop leads on raw conversion performance in 2026, but the right answer depends on your product category, funnel stage, and target audience. Here's how the numbers actually break down for Dutch e-commerce:

• TikTok Shop: average ROAS of 4.2x, conversion rate of 5.1%, CPA of €3.20 via micro-influencers
• YouTube Shopping: average ROAS of 3.7x, conversion rate of 3.2%, particularly strong for high-AOV products
• Instagram Shops: average ROAS of 2.9x, conversion rate of 2.8%, CPA of €7.50 via influencer-driven traffic

These figures come from a Deloitte Digital Netherlands report published in January 2026 and IAB Nederland's 2026 influencer metrics. The gap between TikTok and Instagram on CPA alone (€3.20 vs €7.50) is significant enough to shift budget allocation decisions entirely.

What these numbers don't tell you is why TikTok Shop converts better. The answer is structural: TikTok Shop eliminates the gap between content and checkout. When a creator mentions a product in a live session or a shoppable video, the purchase happens inside the platform. There's no redirect, no broken tracking, no friction. The funnel is collapsed into a single session.

According to McKinsey Benelux research from January 2026, TikTok live shopping events deliver a ROAS of 6.1x compared to 2.4x for Instagram Lives in retail e-commerce. That's not a marginal difference.

TikTok Shop: built for conversion, not just content

TikTok Shop is the clearest example of a platform that was designed with the transaction in mind. For Dutch D2C brands targeting 18-34 year olds, it's currently the highest-performing channel for direct influencer-driven sales.

The data backs this up. Thuiswinkel.org reported in March 2026 that TikTok Shop transactions in the Netherlands grew 27% year-on-year in Q1 2026, compared to 14% for Instagram. Among D2C e-commerce brands specifically, 28% had adopted TikTok Shop by Q1 2026, generating 22% higher ROAS compared to Instagram Shops.

What makes TikTok Shop work for performance marketing:

• Native affiliate links that creators can add directly to videos and live streams, with real-time click and conversion data
• Live shopping events that create urgency and drive impulse purchases, with a 4x higher click-to-purchase ratio than static posts
• Integrated product pages that don't require leaving the app, removing the single biggest source of drop-off in influencer-driven funnels
• Creator marketplace where you can filter specifically for sellers with proven affiliate conversion histories

The conversion advantage is especially pronounced with micro-influencers (5-50k followers). According to the Influencer Marketing Hub 2026 benchmark report, creators with affiliate expertise deliver 3.2x higher conversion rates than brand deal influencers, and this effect is strongest on TikTok where the shopping infrastructure reinforces their CTAs.

For Gen Z buyers specifically (18-24), TikTok converts 2.3x better than YouTube, according to CBS consumer behaviour data from March 2026. If that's your primary audience, the platform choice is straightforward.

At Zeth, when we work with e-commerce brands on performance-focused creator campaigns, TikTok Shop is typically our starting point for exactly this reason. You can see how we've structured performance-driven campaigns in our case study portfolio.

YouTube Shopping: the conversion play for high-AOV products

YouTube doesn't win on impulse purchases, but it wins on considered ones. For products with a higher price point or a longer decision cycle, YouTube Shopping consistently outperforms TikTok on average order value and buyer quality.

The mechanism is different. A 10-minute product review or comparison video builds the kind of trust that converts browsers into buyers who actually keep what they purchase. Return rates are lower. AOV is higher. The affiliate click, when it comes, is from someone who has already decided.

ICI Paris XL in the Netherlands saw a 25% higher AOV through YouTube Shorts with affiliate links compared to their Instagram campaigns, according to Adformatie's March 2026 report on YouTube Shopping in the Netherlands. For a beauty retailer where the average basket includes multiple products, that difference compounds quickly.

Kantar Media Netherlands data from February 2026 shows that micro-influencers on YouTube deliver 34% higher engagement rates for e-commerce content, with 19% more clicks to affiliate links compared to macro-influencers. This confirms what we see at Zeth: a creator with 30,000 highly engaged subscribers in a specific niche (beauty, tech, fitness) will consistently outperform a 500,000-follower generalist on conversion metrics.

The practical case for YouTube Shopping in your stack:

• YouTube end screens and cards allow creators to link directly to product pages, trackable via UTM parameters in Google Analytics 4
• YouTube Shorts with affiliate links are increasingly shoppable and reach users in a discovery mindset
• Long-form review content has a longer shelf life than TikTok or Instagram posts, meaning a well-performing video keeps generating conversions for months
• Search intent alignment: people actively searching for product reviews on YouTube are further down the funnel than passive social media scrollers

The honest limitation is setup complexity. YouTube Shopping requires proper integration between the creator's channel and your product feed, and conversion attribution across sessions is more work than TikTok's native checkout. This is where having a partner who understands both the technical and creative side makes a real difference.

Instagram Shops: still relevant, but not for raw conversion

Instagram Shops isn't the conversion leader in 2026, but dismissing it entirely would be a mistake. Instagram works best as a mid-funnel tool that supports conversion on other platforms, particularly for visually-driven product categories.

The ROAS figures (2.9x average) and CPA (€7.50) are notably weaker than TikTok, and Coolblue's experience illustrates why: their shoppable Reels campaign with micro-influencers delivered 12% conversion growth, but ROAS sat at just 1.8x due to weaker affiliate integration and higher drop-off between content and checkout, according to Twinkle Magazine's February 2026 case study.

Where Instagram still earns its place in a performance stack:

• Shoppable Reels work well for fashion, beauty, and home products where visual presentation drives intent
• Instagram Stories with swipe-up links remain effective for time-sensitive offers and discount codes
• Audience quality: Instagram's user base in the Netherlands skews slightly older (25-40) than TikTok, which matters for certain product categories
• UGC amplification: Instagram content has strong sharing and saving behaviour, which extends earned media value even when direct conversion is lower

The tracking gap is real. Forrester Research EU data from February 2026 shows that 68% of e-commerce marketers struggle with conversion attribution on social platforms, and Instagram's tracking is among the most fragmented. Implementing Instagram's Conversion API alongside UTM parameters in GA4 closes most of this gap, but it requires technical setup that many brands skip.

Our take at Zeth: use Instagram as part of a hybrid campaign structure rather than as your primary conversion channel. Pair it with TikTok for awareness-to-purchase funnels, or with YouTube for consideration-to-purchase. Running it in isolation and expecting strong CPA numbers is where most campaigns underdeliver.

How do you actually track influencer conversions across platforms?

The biggest technical barrier to performance-driven influencer marketing isn't the platforms themselves — it's the attribution setup. Getting this right is what separates campaigns that look good in a deck from ones that actually show up in your revenue data.

Here's the setup that works for Dutch e-commerce in 2026:

1. TikTok Shop: Use TikTok's native affiliate programme with the TikTok Shop pixel integrated into Shopify. This gives you real-time CPA data per creator without custom development. Every sale is attributed at the creator level.
2. YouTube Shopping: Implement UTM parameters on all affiliate links and track via Google Analytics 4 with Enhanced Ecommerce enabled. YouTube end screen links with `utm_source=youtube&utm_medium=creator&utm_campaign=[creator_name]` give you clean attribution per creator.
3. Instagram: Implement the Instagram Conversion API (CAPI) alongside your pixel to recover the conversions that iOS privacy changes have made invisible. Without CAPI, you're likely missing 30-40% of actual Instagram-driven purchases.
4. Cross-platform: Build a Looker Studio dashboard that pulls from all three sources, with ROAS calculated as (affiliate revenue / total creator costs) per platform and per creator. Set your Dutch e-commerce benchmark at 2.5x ROAS as the threshold for scaling.
5. Fraud prevention: SIDN's 2026 influencer fraud report found that 12% of Dutch influencers have fake followers, but integrating creator vetting tools into your selection process reduces this risk by 40%. At Zeth, creator verification is part of every campaign setup, not an afterthought.

The creators who perform best on these metrics are the ones who understand why the tracking matters. At Zeth, we specifically work with creators who have experience with affiliate performance structures, not just brand deal logic. The difference in conversion output is significant.

Frequently asked questions

What's the average CPA for influencer marketing on TikTok Shop in the Netherlands?

Based on IAB Nederland's 2026 metrics, the average CPA for micro-influencer campaigns on TikTok Shop in the Netherlands is approximately €3.20. This compares to €7.50 on Instagram, making TikTok significantly more efficient for cost-per-acquisition goals in Dutch e-commerce.

How do you measure influencer marketing ROI for e-commerce campaigns?

Calculate ROAS by dividing the total revenue attributed to influencer-driven affiliate links by the total creator costs (fees plus product). For Dutch e-commerce, a ROAS above 2.5x is the standard threshold for scaling a campaign. Use platform-native pixels (TikTok Shop pixel, Instagram CAPI) combined with UTM tracking in GA4 for accurate cross-platform attribution.

Are micro-influencers better than macro-influencers for e-commerce conversion?

Yes, consistently. The Influencer Marketing Hub 2026 benchmark report shows that creators with affiliate expertise deliver 3.2x higher conversion rates than brand deal influencers. Micro-influencers (5-50k followers) in specific niches outperform macro-influencers on CPA and ROAS because their audience trust is higher and their content feels less like advertising.

Does YouTube Shopping work for Dutch e-commerce brands?

YouTube Shopping works particularly well for products with higher price points or longer decision cycles, where review content builds the purchase intent that converts. ICI Paris XL saw 25% higher average order value via YouTube Shorts with affiliate links. The setup is more technically involved than TikTok Shop, but the buyer quality and AOV justify it for the right product categories.

Why do influencer campaigns get views but not conversions?

The most common cause is a mismatch between creator type and campaign goal. Most influencers are optimised for reach and engagement metrics, not for driving purchase intent. Solving this requires selecting creators with documented affiliate conversion history, using platforms with native checkout (like TikTok Shop), and scripting CTAs that create genuine urgency rather than passive awareness.

How does Instagram compare to TikTok for influencer-driven sales?

TikTok Shop outperforms Instagram on every key performance metric in 2026: ROAS (4.2x vs 2.9x), conversion rate (5.1% vs 2.8%), and CPA (€3.20 vs €7.50). Instagram is more effective as a mid-funnel or brand affinity channel than as a direct conversion driver, particularly for visually-driven product categories with an older target demographic.

The platform is only half the equation

Choosing the right platform matters. But the bigger variable is whether the creators you work with actually know how to drive a purchase, not just a view. That's where most campaigns fail, and it's not something a platform switch alone will fix.

TikTok Shop is the strongest starting point for most Dutch D2C and e-commerce brands in 2026, particularly if you're targeting under-35 buyers and want native conversion tracking without complex custom setup. YouTube Shopping earns its place for high-AOV products and considered purchases. Instagram stays relevant as a supporting channel, not a primary conversion driver.

The brands getting the best influencer ROI for e-commerce right now are running hybrid campaigns with creators who understand performance logic, tracking every touchpoint from click to checkout, and iterating on what the data shows rather than what the content looks like.

If your current creator campaigns are delivering views but not revenue, the problem is solvable. Talk to the Zeth team about building a performance-focused influencer strategy that's built around your CPA and ROAS targets from day one.