Marketplace PPC advertising allows UK sellers to promote products directly on platforms such as Amazon, eBay, Etsy, TikTok Shop and OnBuy, helping them reach buyers who are actively shopping. By using sponsored product and display ads, sellers can increase visibility, drive sales and test product demand without large upfront commitments.
This guide explains how to set up and manage campaigns across major UK marketplaces. It includes specific strategies, realistic budget examples based on typical early-stage operations, and step-by-step reasoning for decisions that help control costs while improving results.
Understanding Sponsored Product Ads on Amazon and eBay
Sponsored product ads appear in search results and on product detail pages. On Amazon they are labelled "Sponsored" and on eBay they appear as promoted listings. These ads are keyword-targeted and charge per click when a shopper clicks the listing.
Start by identifying high-intent keywords. For a kitchen knife seller, terms such as "chef knife UK" or "sharp cooking knife" often convert better than broad terms like "knife". Use the platform's search term reports after a few days of running ads to add exact and phrase match keywords and exclude irrelevant ones. This reduces wasted spend on clicks that do not lead to sales.
Reasoning: Exact match keywords usually have higher relevance and conversion rates than broad match. Begin with a small daily budget to gather data before scaling. Typical starting daily budget for a new Amazon seller in the UK might be £15–£30 per campaign, split across 3–5 ad groups. On eBay, promoted listings can start at £5–£10 daily depending on category competition.
Setting Up Display and Sponsored Display Campaigns
Display ads show products on other pages within the marketplace or on external sites through remarketing. Amazon Sponsored Display and eBay Promoted Listings Advanced both allow product targeting or audience targeting based on past behaviour.
For UK sellers, a useful approach is to create a remarketing campaign that targets shoppers who viewed similar products but did not purchase. Set bids lower than search campaigns because remarketing traffic is often warmer but still requires careful cost control. Example: allocate £10 daily on Amazon Sponsored Display for a fashion accessory product, using product targeting on competing ASINs with a bid of 30–50p.
On Etsy and TikTok Shop, similar sponsored display-style ads exist with visual creative formats. Test one product at a time, monitor click-through rates and adjust images or targeting if the rate falls below typical marketplace averages. Always separate search and display budgets to understand which delivers better return.
Budget Examples for Early-Stage UK Sellers
New sellers should begin with modest total monthly ad budgets of £300–£800 across all marketplaces while testing. Split this as 60% to Amazon (primary volume), 25% to eBay, and 15% to Etsy, TikTok Shop or OnBuy depending on where the products are listed.
Practical example for a new homeware seller: £20 daily on Amazon sponsored products (£420 monthly), £8 daily on eBay promoted listings (£170 monthly), and £5 daily split between TikTok Shop and OnBuy display-style campaigns. This allows data collection within the first 30 days without overcommitting funds. Increase budgets only after confirming that advertising cost of sales stays within a profitable range for the specific product category.
Reasoning: Early budgets should cover at least 50–100 clicks per campaign to generate usable data. Platforms require a learning period; sudden large increases can lead to inefficient spending. Review performance weekly and pause underperforming keywords or products quickly.
Bidding Strategies and Optimisation Steps
Use manual bidding initially to maintain control. Set maximum cost-per-click based on product price and margin. For a £25 item with 40% gross margin, aim to keep average cost per click under £1.20 so that advertising cost of sales remains manageable. Adjust bids upward for top-performing search terms that convert and downward for those that only generate clicks.
Steps to optimise:
- Run campaigns for at least 7–14 days before major changes.
- Download search term and placement reports weekly.
- Add negative keywords for irrelevant searches (for example, "free" or competitor brand names if not selling those items).
- Test different bidding amounts on the same keywords in separate ad groups.
- Monitor return on ad spend and adjust daily budgets based on profitability, not just sales volume.
On multichannel setups, use the same logic across platforms but note that eBay and Amazon bidding can behave differently due to varying audience intent. Always check each platform’s current terms for advertising rules and reporting tools.
Multichannel and Wholesale Marketplace Considerations
When selling on multiple UK marketplaces or through wholesale channels, coordinate PPC efforts to avoid bidding against yourself. Use distinct campaigns per platform and track which marketplace drives the most profitable traffic for each product.
For wholesale-focused sellers on platforms such as OnBuy or specialist B2B marketplaces, sponsored ads often target business buyers with higher average order values. In these cases, a higher cost per click can still be justified. Example: a £10 daily budget on display ads targeting UK retailers might generate fewer clicks but higher-value orders. Test product bundles or minimum order quantities in the ad creative where allowed.
Keep campaigns simple. Start with one or two products that have proven organic sales before expanding to the full catalogue. This focused approach provides clearer data on which keywords and audiences work in each sales channel.
Common Pitfalls and Measurement Best Practices
A frequent issue is setting bids too high at launch, which exhausts budgets before learning occurs. Another is failing to add negative keywords, leading to irrelevant traffic. Measure success primarily by advertising cost of sales and return on ad spend rather than just clicks or impressions.
Use each platform’s built-in analytics. Cross-check orders in your own system to confirm which sales originated from ads, especially important for multichannel sellers. Adjust strategies seasonally; competition and costs often rise in the final quarter of the year. Review fees and commission structures regularly, as platform terms and associated costs change. Consult GOV.UK, HMRC or the specific marketplace help pages for the latest requirements on business registration and tax obligations.
Scaling and Long-Term Management
Once campaigns show consistent profitability, gradually increase budgets by no more than 20–30% per week while continuing to monitor metrics. Add new keywords and products only after the core campaigns are stable. Consider automating rules for pausing keywords that exceed a chosen cost-per-click threshold.
For UK early-stage founders balancing time and resources, focus on a few high-potential products rather than spreading budgets thinly. Many sellers find that consistent small daily testing yields better long-term results than occasional large campaigns. Platforms evolve their ad formats and algorithms regularly, so schedule monthly reviews of performance and policy updates.
Founders based in West Yorkshire can explore free workspace and mentoring options at places such as Loomworks in Liversedge, which supports selected e-commerce startups with desks and guidance as they grow their marketplace presence.
Frequently asked questions
How much should a new UK seller spend on marketplace PPC?
Early-stage sellers often start with total monthly budgets between £300 and £800 across platforms. Split spending according to where most sales occur, typically favouring Amazon. Use small daily amounts per campaign to gather data before increasing spend. Actual budgets depend on product margins and competition levels.
What is the difference between sponsored product and display ads?
Sponsored product ads appear in search results and target keywords. Display ads show on detail pages or external sites and often use product or audience targeting for remarketing. Search campaigns usually drive immediate intent traffic while display helps with awareness and retargeting previous visitors.
Should I use automatic or manual bidding on Amazon?
New sellers benefit from starting with manual bidding to learn which keywords perform. Automatic bidding can be tested later once you have enough data to set sensible maximum bids. Manual control helps prevent rapid spend on unprofitable terms during the learning phase.
How do I reduce wasted spend on marketplace ads?
Regularly review search term reports and add negative keywords for irrelevant searches. Separate campaigns by match type and product. Pause underperforming keywords quickly. Set realistic maximum bids based on product price and target advertising cost of sales. Monitor performance at least weekly.
Can PPC campaigns work for wholesale marketplace sales?
Yes. For wholesale or B2B listings, target business audiences or use higher-value product bundles. Although click volumes may be lower, order values are often higher. Test modest daily budgets and measure success by total order value rather than single-unit sales.
Related reading: Amazon peak season selling strategies UK, Profitable second hand selling on eBay UK, Capitalising on seasonal trends on Etsy UK. Browse all marketplaces guides or apply to Loomworks.