M&S influencer marketing case study: creator content that drove positive ROAS

To sell its summer collection, M&S MENA built a creator system around five Instagram creators, earning a 12.9% engagement rate, 24x the industry benchmark, and a positive 1.2 ROAS.
Driving direct sales from creator content is the harder half of influencer marketing. M&S MENA did it by treating influence as a system, not a one-off post: brief five aligned creators, give them genuine creative freedom, then put paid spend behind the organic content that had already proven it could perform.
The result was high-quality content produced more cost-effectively than traditional production, organic engagement that beat the category benchmark 24 times over, and paid social that converted at a positive return on ad spend.
The short version:
- Brand: M&S MENA, elevating its summer collection on Instagram.
- The system: five creators selected for brand alignment, briefed loosely, then amplified through paid boosting.
- The approach: creative freedom first, paid spend second, boosting only the organic content that had already earned engagement.
- The outcome: a 12.9% organic engagement rate (24x the industry benchmark) and a positive 1.2 ROAS.
The brief: elevate the summer collection through creators
M&S MENA wanted to showcase its summer collection on Instagram and communicate the quality, value and innovation behind the products. The objective was specific: not broad awareness, but content that did justice to the collection and reached the right audience natively on the platforms they already use.
The strategy: align five creators, then amplify what works
The campaign was built in two deliberate stages: earn the engagement organically, then put spend behind the assets that proved themselves.
Five creators were selected for brand alignment and creative resonance, so the content would feel native to their feeds and credible to their audiences. Working with Vamp, M&S MENA briefed all five in parallel and gave them creative freedom rather than a fixed shot list. That freedom is what made the content land: creators produced authentic, entertaining videos in their own style, tailored to their platform and their followers, while still carrying M&S MENA’s message of quality and innovation.
The second stage is where the system compounds. Rather than guessing which assets to put paid spend behind, the campaign boosted the organic content that had already demonstrated engagement. Those assets were pre-tested in real feeds, so they blended naturally into paid social placements instead of reading as ads. This is exactly what drove the positive return on ad spend.
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The outcomes: benchmark-beating engagement and a positive ROAS
Two decisions did the heavy lifting, and they’re the same ones that separate a system from a single post.
First, let creators work in their own style. Content made the way creators normally make it is tailored to the platform you’re activating on and the audience you’re targeting, so it performs organically rather than fighting the feed.
Second, boost what’s already proven. Putting paid spend behind high-performing organic assets means working with content that’s been tested for impact in real feeds. It slots into a user’s feed instead of interrupting it, which typically lifts both engagement and conversion, exactly what happened here.
Organic results
| Paid results
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FAQs
What results did the M&S MENA creator campaign achieve?
Five creators produced five assets that generated 157,891 video plays, 110,487 reach and a 12.9% organic engagement rate, 24 times the industry benchmark. Boosting those proven assets on paid social drove 88 purchases and $3,180.19 in revenue, for a positive 1.2 ROAS.
Why did boosting organic content drive a positive ROAS?
Because the assets were pre-tested in real feeds. Putting paid spend behind content that had already earned engagement means you’re amplifying proven creative that blends into a user’s feed rather than interrupting it, which typically lifts engagement and conversion together.
Why give creators creative freedom?
Authenticity outperforms control. Content made in a creator’s own style is tailored to the platform and audience, so it reads as native rather than as an ad, and audiences trust it more, which is what makes it convert.
A campaign is a moment. A creator system is an asset.
M&S MENA shows what happens when influence is engineered rather than improvised: align the right creators, earn the engagement organically, then put spend behind what’s already proven. The harder, more valuable work is turning a result like this into something repeatable, a system that produces high-performing creative and measurable return, campaign after campaign.
That’s the work we do. Vamp is a tech-enabled influencer marketing agency: we design creator-led growth systems and run the engine behind them, so influence becomes measurable growth rather than a one-off spike. Talk to us.