Paid Social Ads
Paid Social Case Studies
One Day Agency ran paid ads for Raventos Codorniu as part of an integrated campaign to build awareness and drive Cava sales across UK supermarkets in Q4 2022.
The strategy was built on frequency, reaching the same audience more than five times rather than chasing new formats, so paid activity on YouTube and display filled the gaps between higher-impact media. We profiled the audience as skewing female in the 25 to 45 core age group and used Global Web Index research into media consumption habits to decide where paid weight should sit. That kept the brand present from waking up to going to bed, with paid digital reinforcing ITV VOD, London Underground formats, supermarket screens, roadside large formats and bus stops.
Their International Brand Manager for Europe and Asia reported market share growth against a category down 11.6% in value, crediting the April and July marketing campaigns.
Paid Ads for Raventós Codorníu
Meta Ads for Valla
One Day Agency ran Meta ads for Valla, the legal coaching platform helping people navigate workplace issues, as part of an integrated Manchester campaign.
Valla's audience is working professionals who may be struggling silently with HR conflict, discrimination or burnout but do not know where to turn, so the job was to validate that experience and introduce Valla as a trustworthy option. Our Meta ads targeted career-minded users by work and education profile, aged up to 55, many with degrees and employed in medium to large B2B organisations. Creative ran in social feeds and tapped directly into unspoken workplace frustration under the line "Work shouldn't feel like this."
Meta delivered more than 1.3 million impressions, with video creative achieving a 16.5% engagement rate and carousel retargeting driving deeper interaction. Across Meta, YouTube and Spotify the campaign reached 2.5 million impressions with roughly 21% resulting in active engagement, well above benchmarks for the legal space.
One Day Agency ran the paid social for Thames Water and Copper Consultancy, raising awareness of a proposed new reservoir in the South East and getting Oxfordshire residents to have their say on it.
A public consultation is a harder ask than a product campaign, because visibility alone is not the point, participation is. Social carried the job of reaching younger and harder to reach residents that rail posters and local press would miss, so we ran TikTok for high impact video reach and in-platform engagement, with YouTube alongside it for sustained video visibility.
TikTok delivered 222,869 impressions and 934 clicks, and generated paid likes and shares, showing the creative prompted interaction rather than passive exposure. YouTube delivered 155,085 impressions and 14,192 engagements, roughly one engagement for every 11 impressions, within a digital campaign totalling 578,902 impressions and 15,310 clicks.
Social Ads for Thames Water
Paid Socials for Barnardo’s
One Day Agency produced the paid social for Barnardo's summer fashion campaign, putting the case for shopping pre-loved in front of the public.
The audiences were deliberately different, Gen Z and families, and they do not respond to the same message, so we varied creative and messaging by who we were targeting and where. Paid social concentrated on Instagram and Facebook because carousels and the full screen ad experience let us show a range of outfits rather than a single hero product, which suits second-hand fashion where no two items are the same.
Social was one layer of a wider campaign. UK-wide out-of-home carried the message in demographically selected areas, and YouTube and Google display ads followed the same targeted strategy, so the same person could meet the campaign on a poster, in feed and on video.
One Day Agency created the paid social campaign for Ambl, the restaurant reservation app, as part of bringing spontaneity back to booking a table.
Paid social had to do two different jobs at two different moments. For the pre-launch we needed curiosity rather than installs, which is why the social work sat alongside full motion video on socialite screens in London pubs and bars, sparking conversation in exactly the setting where people decide where to eat next. For the full launch we moved to conversion, running ad sets across Instagram, Facebook and Snapchat specifically to use the full screen experience those platforms offer.
Running social in tandem with billboards, posters, bus stops and phone boxes placed in London's restaurant and bar hotspots meant the app was present both in the moment people were out and afterwards on their phones.
Social Ads for Ambl
One Day Agency delivered the paid social for Harrys of London, the premium footwear and accessories brand, with the aim of driving traffic and online sales through their eCommerce site.
The brief was education as much as acquisition. Both the core audience and new prospects needed to understand what sits behind the premium collections, which meant the creative had to carry craft and comfort rather than just product and price. We handled the brand campaign, graphic design, motion graphics and video and photo editing in house, so the paid social assets came out of the same process as the wider brand work and carried a consistent look.
Keeping creative production and media in the same place let us produce the volume of platform-specific variations paid social needs without the brand presentation drifting between formats.
Paid Video Ads for Harrys of London
One Day Agency produces the paid social for Union Hand-Roasted Coffee on an ongoing monthly basis, driving traffic and online sales through their eCommerce site.
The brief is educational before it is commercial. Audiences need to understand speciality coffee and how to get the coffee shop experience at home, which is also what makes the CoffeeClub subscription worth joining, so the creative has to teach as it sells. As a long term client we work in tandem with Union Roasted's own team, producing a continuous stream of new assets rather than a single campaign burst.
The output spans YouTube, Pinterest, Snapchat, Facebook and Instagram, including video ads for feed and Stories and carousel ads built to walk through a product range that changes as beans are roasted to order.
Paid Social for Union Roasted
One Day Agency ran paid social for Lakeland Arts, the arts and heritage charity, across its three destinations: Abbot Hall, Blackwell and Windermere Jetty Museum.
Paid social did double duty here. Alongside selling tickets it worked as a discovery channel, introducing Lakeland Arts to people who had never heard of it and building a pipeline of prospective visitors to nurture into online and in-person conversions later. That shaped the balance of activity across discovery, traffic and conversion rather than pushing everything at the bottom of the funnel.
We weighted spend to the April to September peak to maximise footfall, then moved to winter exhibitions and festive experiences to counter the seasonal drop. Creative moved from promoting venues to promoting specific events, tours and workshops, with carousel formats built so slides connect when swiped for remarketing audiences.
Paid Social for Lakeland Arts
One Day Agency took over paid social for Verifone, the electronic payments technology business, to generate leads for their all-in-one portable card machine and bring down cost per lead.
The product suits a narrow audience, so wastage was the whole problem. The brand had been running ads already but with limited targeting that grouped very different buyers together. We worked with the client to define separate buyer personas, then rebuilt audiences in Meta around them, reasoning that each buyer has different pain points so different KPIs would resonate. We transitioned to the new structure steadily rather than all at once, to avoid pushing the account back into the learning phase.
Separating audiences gave us granular control over creative and room to adjust for each industry's seasonality. Cost per lead declined from onboarding in November onwards.
Paid Social for Verifone
One Day Agency built the paid social for Artgapi, the Paris-based creative hub and social platform for artists, in what was the brand's first venture into performance marketing.
We launched on Meta in May 2025 using interest and demographic targeting to reach high-intent UK audiences and artists in key cultural hubs, then expanded into TikTok to reach creative communities through interests, purchase intentions, creator interactions and popular hashtags. When organic traction spiked in Spanish-speaking markets mid-campaign, we did not wait for the next planning cycle: we deployed localised Meta and TikTok activations to capture the surge.
The campaign drove over 30,000 app installs in under three months at a cost per install of €0.07 to €0.08, well below benchmark. The Spanish-language activity also produced a sharp rise in Google search volume for "Artgapi.”
Meta & TikTok Ads for Artgapi
Latest Paid Social Case Study
One Day Agency planned and delivered the paid social behind Airportr's launch in Germany, covering Frankfurt am Main and the surrounding travel catchment including Mainz, Wiesbaden, Darmstadt, Mannheim, Bonn and Cologne.
Social carried discovery for a service most travellers did not know existed. Meta ran prospecting and retargeting across adults and families, using travel interests, family interests and frequent traveller behaviours, with retargeting focused on people who had watched the videos. TikTok handled upper and mid funnel reach among users already showing travel signals.
Meta delivered 2,404,701 impressions and 5,451 clicks, TikTok 3,186,403 impressions and 5,515 clicks. One clear learning: women delivered more link clicks and nearly three times the CTR of men on Meta despite lower impressions, and responsiveness rose with age, with the 55+ group particularly engaged.
Paid Socials for Airportr
Speak with our paid social advertising team today.
At One Day, you speak directly with senior strategists and directors involved in the work, not account handlers or junior intermediaries. Expect straight advice from experts across Creative, OOH, Digital, and global media activation.
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