Social media retargeting: win back followers who nearly bought

Key takeaways

Social media retargeting shows adverts to people who have already engaged with your business, such as followers, video viewers or website visitors, to bring them back to buy. It is usually the best first use of a small ad budget, because warm audiences are small, cheap to reach and already interested. Website retargeting needs cookie consent first in the UK.

• Start with engagement and video-viewer audiences: no pixel needed.
• Website visitor audiences need the Meta pixel and cookie consent.
• Show proof and the offer, not your introduction again.
• Test from about £100–£300 a month and watch frequency.

What is social media retargeting?

Social media retargeting, also called remarketing, is showing paid social adverts to people who have previously interacted with a business, on the platform or its website, so that interested people who did not act see the offer again. It focuses ad spend on warm audiences rather than strangers.

• How UK businesses can turn social media followers into customers
• Cold, warm and hot audiences on social media explained

Which audiences can you retarget?

On Meta you can build custom audiences from Instagram and Facebook engagement, video viewers, lead form openers, page followers and website visitors. LinkedIn offers matched audiences from page visitors, video viewers and website visitors. Engagement audiences rely on activity on the platform. Website audiences rely on a tracking tag on your site.

• Engaged with your profile in the last 90 days.
• Watched at least half of one of your videos.
• Opened but did not submit a lead form.
• Visited your offer or pricing page, with consent.

• The Meta pixel and UK GDPR: consent before you track

What should retargeting adverts show?

Retargeting adverts should show what the person has not yet seen: proof, the offer and the answer to their likely doubt. Someone who watched a tips video needs a case study and the offer. Someone who visited your pricing page needs a review and a reason to book this week. Do not repeat the introduction.

• Turn a case study into social media posts that sell

How much should a small business spend?

As an indicative range, a small business can test retargeting from about £100–£300 a month in ad spend, because warm audiences are small. Watch frequency, the average number of times each person sees the advert. If it climbs well above a few a week, rotate the creative or widen the audience to avoid irritating people.

• Paid social budgets for UK small businesses
• Always-on vs burst social ads for small budgets

What are the UK consent rules for retargeting?

Under PECR, placing advertising cookies or pixels on a visitor's device needs their consent, so the Meta pixel should only fire after someone accepts marketing cookies. The Information Commissioner's Office (ICO) has made cookie compliance a priority. Engagement audiences built inside Meta or LinkedIn do not depend on your website's cookies.

• Cookie banners and UK law

When does retargeting not work?

Retargeting does not work when the warm audience is too small to deliver adverts, when the offer or path after the click is broken, or when the same advert runs for months. It also cannot create interest that is not there: it amplifies the effect of content that already engages the right people.

What does this look like in practice?

A pattern we see: the whole ad budget goes on reaching new people, and nobody who watched last month's videos ever sees an offer. Moving part of it to a video-viewer audience with a case study and the offer is usually the first change we test.

• See client work
• Social Media Marketing for UK businesses
• The follower conversion scorecard: find where buyers drop out

Retargeting checklist

• Build engagement and video-viewer audiences.
• Add website audiences only with cookie consent.
• Show proof and the offer, not the introduction.
• Start with a small test budget.
• Watch frequency and rotate creative.
• Measure cost per enquiry or sale.

Next step

Check the size of your 90-day engagement audience in Meta Ads Manager. If it is in the hundreds or more, it is worth a retargeting test.