Out-of-Home Advertising
Ecommerce Advertising Agency
Your Ecommerce brand should shine wherever customers discover, scroll, and shop — from search results to social feeds, from city streets to search experiences.
Ecommerce is a huge sector worth about £5 trillion to the global economy, and with a market size of roughly £131 billion in the UK alone. That also means it is enormously competitive, and that brands who want to succeed need to develop customer experiences and advertising campaigns that stand out and drive growth.
One Day specialises in impactful, cross-channel ecommerce advertising, from national impactful OOH campaigns to data driven search and paid social promotions.
Whether you’re launching a new D2C brand, optimising your online store for conversion, or scaling your ecommerce presence across new markets, we know how to connect digital-first brands with millions of shoppers in the moments that matter most.
Ecommerce Advertising Agency
Understanding Consumers.
For ecommerce brands, purchase decisions aren’t always impulsive — they’re considered. Today’s shoppers compare, research, read reviews, and switch between devices before committing to buy. Winning them over means showing up consistently across every touchpoint, from discovery on social and AI tools, to retargeting during research, to a seamless checkout experience when they’re finally ready to purchase.
We use data-led insights to map the full customer journey, from discovery to checkout and beyond. By analysing behaviours such as browsing patterns, repeat purchase triggers, content engagement, and time-to-conversion, we build segmentation strategies that go beyond demographics to uncover real purchase intent.
Whether it’s building trust for a premium D2C brand or driving loyalty for a fast-growing retailer, our ecommerce strategy ensures your brand shows up at every decisive moment.
Connected Ecommerce
The ecommerce journey isn’t linear. It moves fluidly between discovery, research, and purchase. That’s why One Day builds campaigns that connect every stage of the journey across channels where intent actually happens.
Our cross-channel approach blends the impact of OOH with the precision of digital. From SEO visibility and influencer storytelling to TikTok virality, Instagram inspiration, and programmatic performance, we make sure your brand shows up in the right place at the right moment. Whether a customer first discovers you on a city screen, through a trending Reel, or in a Google search, every interaction feels connected and built for conversion.
We don’t just build reach. We build momentum. By uniting brand storytelling with performance media and real shopper insight, we turn awareness into measurable action and transform browsers into loyal customers.
The Ecommerce Mix
The ideal structure for your ecommerce campaigns will always depend on who your key audience is, and how best you can interact with those demographics, but many campaigns include:
Paid social media advertising, using on-brand visuals, explainers, branded ads and influencer partnerships to ensure new audiences discover your brand, and you continue to build better awareness.
Online search and PPC campaigns, with platforms like Google Ads and Google Shopping proven to help ecommerce businesses capture interest from viewers who are actively looking for a similar product.
Digital retail marketing, with online marketplaces where you can expose ad messaging to consumer groups who are ready to buy.
We can, of course, provide more personalised recommendations about the components that will fit into your advertising strategy and goals. The One Day team is known for our cohesive approach to cross-channel campaigns, which ensures your branding and advertising are consistent at each touchpoint.
Types of Ecommerce Ads
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![Paid Social Advertising]()
Paid Social Advertising
Paid social media campaigns give brands a way to insert their promotions via feeds, Reels and Stories across platforms like TikTok, Instagram and Meta. They can use accurate targeting based on audience behaviours and interests, and depending on the channels most visited by their ideal consumer persona.
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![Search and Shopping Promotions]()
Search and Shopping Promotions
Online PPC campaigns position ads to be shown to buyers when they are already in a decision-making phase. They leverage Google Shopping and search advertising that can boost returns on ad spending and reach new demographics who may not have come across the ecommerce brand before.
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![Out of Home Advertising]()
Out of Home Advertising
OOH plays a powerful role in driving ecommerce growth by bridging the gap between physical spaces and digital action. From high-impact billboards and digital screens to transport and retail environments, OOH creates brand familiarity and fuels online discovery. With the rise of mobile-led shopping, consumers who see an ad on their commute or in-store are often just a tap away from visiting your site or searching your brand.
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![Influencer Marketing]()
Influencer Marketing
Influencer marketing drives ecommerce growth by blending authenticity with conversion. The right creators build trust, inspire action, and make products feel personally recommended rather than advertised. At One Day, we pair data-driven creator selection with platform insight across TikTok and Instagram to spark engagement that turns awareness into measurable sales.
Select 49 more words to run Humanizer.
Who is Ecommerce Advertising for?
Ecommerce marketing is for any brand that sells anything online, including established global businesses that want to expand into new jurisdictions, and smaller start-ups in competition with current market leaders.
Fashion and lifestyle ecommerce brands use advertising promotions that include social media ads and search campaigns to build interest, improve familiarity, and help them scale quickly.
Larger retailers introduce ecommerce ad campaigns to strengthen their digital presence and to drive more traffic to their online and in-store premises.
Newer ecommerce brands rely on data-led advertising campaigns to show how they present a fresh alternative to more established businesses, often using storytelling as part of brand-building projects.
We also work closely with companies that may have a solid position in some markets, but need help adjusting their messaging or imagery to new audiences, especially when working to establish a following in different countries with varied consumer habits and expectations.
Why Ecommerce Advertising?
The size and competitiveness of the ecommerce market make advertising essential. With almost 30% of all UK retail sales now completed online, it's nearly impossible to grow and compete without it.
Shifts in shopping trends and customer behaviours mean the majority of ecommerce buying journeys now start with an ad – this is the first step to engaging with new buyers and convincing them to try your brand.
Campaigns are easily measurable, which gives you performance data to track the returns achieved, see what works, and refine your promotions to achieve the best possible outcomes.
Cross-platform targeting ensures that ecommerce brands can create one interconnected campaign that is visible across multiple channels, without investing unnecessary resources in several standalone ads.
You'll find case studies of our work with ecommerce brands via the One Day site, which gives you more statistics and information about the results we’ve achieved for our clients.
How Can One Day Help?
One Day is a full-funnel, senior team of advertising experts, blending our specialisms in creatives and analytics with advanced ad tech and media buying. This helps us design campaigns that deliver the perfect blend of brand building and growth, ensuring ecommerce companies are primed for success.
Our work has included ecommerce campaigns for diverse businesses, from B2B fulfilment providers to fintech electronic payment brands, premium jewellery retailers and artisanal direct-to-consumer producers.
Our Latest Ecommerce Campaigns.
See below our selected work in creative, digital and media planning and buying, click or tap to view.
Pharmaceutical - Creative Case Study
Jewellery - Digital Paid Social
Footwear - Paid Social
Meet the Ecommerce Team
Klaudia
Shelby
Scott
“In my experience, the secret to success in ecommerce is to keep an eye on the big picture, rather than depending on one single campaign to transform your fortunes. We build customer journeys that remove friction, show how your brand solves problems, and convert – focusing on the integrated philosophy that we know works.”
Ricardo Seixas, Founder and CEO, One Day Agency
What our clients are saying…
Frequently Asked Questions.
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Definitely! Ecommerce might be a vast market, but it also has low barriers to entry, and start-ups and disruptors can achieve considerable growth through carefully targeted campaigns, without the prohibitively high overheads associated with other forms of advertising.
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The suggestions we make will depend on your brand, target audience, and existing presence. However, in many cases, we'll consider placements and paid ads on platforms like TikTok, Meta, Amazon, and Google Shopping, to provide a few examples.
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Expert ecommerce advertising strategies are developed to improve every aspect of your sales funnel. We use an integrated approach that ensures we look both at building awareness and optimising consumer perceptions.
Ecommerce marketing can be wholly adapted to your goals, with the option to scale and tweak your campaigns as your brand grows or launches in new areas.
Data-driven advertising gives you access to analytics that maximise efficiency, without wasted spending or ad variants that are unlikely to deliver.
We offer multi-channel campaign management, helping you connect with consumers via outdoor marketing, digital advertising, and social media placements.
Ecommerce Advertising Agency.
Ecommerce marketing and advertising across out-of-home, TV, digital marketing and more.
Digital OOH, Billboard Advertising, Bus Advertising, Taxi Advertising, London Underground Advertising, Airport Advertising, Transport Advertising, Rail Advertising & More.
