Social media marketing guide: your first 90 days

Social media marketing means publishing useful content, replying to people and running targeted ads on the platforms your customers already use, so that more of them enquire or buy. This social media marketing guide gives UK small businesses the working order: secure your accounts, pick one or two channels, post consistently for 90 days, then add paid.

Key takeaways

• Fix account ownership before you publish anything. It is the cheapest problem to prevent and the most painful one to repair.
• Start with one or two platforms. Add another only when the first runs without you having to think about it.
• Consistency beats volume. A pace you can hold for 90 days is better than a burst that stops in week three.
• Posts by owners, staff and friends of the business can count as advertising under UK rules, even when nobody was paid.
• Decide at day 90 using tracked enquiries, not follower numbers.

What should a social media marketing guide tell you to do first?

The first job is making sure the business, not an individual, controls its accounts. The beginner guides we read start with goals and content ideas, and none of them covered who holds admin access. That gap matters when a staff member leaves or a freelancer stops replying.

On Meta, the tool for this is a business portfolio, which brings Facebook Pages, Instagram accounts, Threads accounts, ad accounts and catalogues together so you can manage them and the people who access them in one place. Set it up in this order:

1. Use a company email address that survives staff changes for every platform sign-up, such as a shared marketing inbox.
2. Create the business portfolio and add your Facebook Page, Instagram account and ad account to it.
3. Give at least two trusted people full control so that the business is never locked out by one absence. Only people with full control can invite others.
4. Give everyone else basic access, which is the default for new people, and assign only the assets they need.
5. Add agencies as partners rather than handing over a password. Meta’s partner route lets you share specific assets with another organisation.
6. Turn on two-factor authentication and record who holds access in a simple document that you review each quarter.

At ProntX, we insist that clients own their accounts, for exactly this reason. If a supplier ever says the page or ad account has to sit in their name, treat that as a warning sign.

Which social media platforms should a UK business start on?

Start where your buyers already spend time and where your content is easiest to make. Reach alone will not settle it, because the biggest services are used by nearly everybody. Ofcom’s Online Nation report, published on 10 December 2025, found YouTube used by 94% of UK adults and Facebook with Messenger by 93%, with adults spending an average of four and a half hours online a day.

Those numbers tell you the audience is there. The better question is which format you can sustain. This is how we would make the first choice:

If you cannot picture who would make the content each week, it is the wrong platform for now. Our guide to building a social media strategy goes deeper on audience and goal setting if you need that step.

What does a realistic first 90 days look like?

A realistic first 90 days has four stages: set up, build a rhythm, learn what works, then decide. The plan below is the sequence we would follow for a small business starting from little or nothing.

Keep the first goal narrow. “Get more quote requests from homeowners within 20 miles” gives you something to judge. “Raise awareness” does not.

How often should a small business post on social media?

Post as often as you can keep up with good material, and treat published benchmarks as a ceiling. Buffer’s January 2026 guide suggests three to five posts a week on Instagram, two to five on LinkedIn and two to five on TikTok. The same guide says its analysis of more than 100,000 users found regular posting brought five times more engagement.

Buffer does not publish sample sizes for each platform figure, and its data comes from people already using a scheduling tool, so read those ranges as a guide. For most small teams, we would begin with two good posts a week on one platform. Move up only once you have a few weeks of posts ready ahead of time.

What should you actually post?

Post things only your business can say. Generic tips can be produced by anyone, whereas your own jobs, prices, mistakes and customers cannot. Four themes will cover most small businesses:

• Proof: finished work, how a problem was solved, real reviews used fairly.
• Answers: the questions customers ask on the phone, answered in under a minute.
• People: who does the work, how they do it and what they care about.
• Offers: what you sell, what it costs and how to buy, stated plainly.

Replying is part of the job as well. A quick, useful answer in the comments can be read by far more people than the person who asked, and it is the easiest part of the work to neglect.

What UK rules apply to social media marketing?

The rules that catch small businesses out cover undisclosed advertising, reviews and customer data. The ASA and CMA guide to making clear that ads are ads, dated October 2026, is written for influencers but states that it is useful to brands too. These are the points we would brief a team on:

• Your company page. Content on a brand’s own channels is often already clear as advertising in that context. Take care with anything styled to look like independent content.
• Personal accounts. Being an owner or employee counts as a connection to the brand. If a founder or staff member promotes the business from a personal account, it needs a clear label upfront.
• Gifted products. A free product counts as payment even when the person had no obligation to post.
• Labels. Use Ad, Advert or Advertisement at the start. The guide advises against Gifted, PR, Sponsored, Collab and simply tagging the brand.
• Stories and reposts. Each story in a series should carry a label, and so should each format if the same ad is reposted.
• Giveaways and claims. Prize draws have their own rules in Section 8 of the CAP Code, and product claims need proof.

Reviews have their own regime. CMA guidance published on 4 April 2025 lists a social media post offering free products in return for five-star reviews as an example of banned commissioning. Asking a member of staff to review your business can also count as commissioning. Simply asking customers in general whether they would like to leave a review is allowed.

Customer data needs care too. ICO direct marketing guidance explains that when you give a platform your customers’ contact details to build an audience, you and the platform are likely to be joint controllers in many cases. It also cites Which? research finding 79% of those questioned did not know platforms match profiles to uploaded customer lists. Read that section and update your privacy information before uploading any list.

How do you know if social media marketing is working?

It is working when you can connect posts to enquiries, sales or another goal set on day one. Followers and likes tell you whether content is being seen, but they do not pay invoices. Add tagged links to every post, record how new customers heard about you, and compare the numbers each month. We have written a full walkthrough on measuring social media performance in GA4.

At day 90, make one of three decisions. Continue if tracked enquiries are arriving and the effort is manageable. Change the platform or themes if people engage but nobody enquires. Stop if nothing has moved and the time would earn more elsewhere, because stopping is a legitimate result.

When should you add paid social?

Add paid ads once you know which organic posts people respond to and your website can turn visitors into enquiries. Ads make an existing message reach more people, so they will not rescue a weak offer or a poor landing page. Use your best-performing organic post as the first test, keep the audience tight and decide the budget you are willing to lose before you start. If you would rather have specialists run it, our paid campaign management for Meta, TikTok and LinkedIn is built around the same test-first approach.

Should you run social media yourself or outsource it?

Run it yourself if you have reliable time and the material is mostly in your head. Outsource it when the plan keeps slipping or when paid campaigns need closer management. Use this quick test:

• Keep it in-house if someone can protect regular hours each week, enjoys being on camera or writing, and your budget is limited.
• Use a mixed model if your team can supply photos, stories and approvals but cannot plan, edit or report.
• Outsource if posting has stopped more than once, ads are involved, or nobody is tracking results.

For a sense of budget, ProntX social media work starts from £650 a month excluding VAT, on a rolling monthly contract, with ad spend paid directly to the platform. Our breakdown of what social media marketing costs in the UK compares the options.

Your social media launch checklist

• Accounts created with a company email address
• Business portfolio set up, with two people on full control
• Two-factor authentication switched on
• One goal written down, with a number attached
• One or two platforms chosen, and a named person responsible for each
• Profiles complete, with accurate contact details and a website link
• Three or four content themes agreed
• Two weeks of posts ready before the first one goes out
• Tagged links set up for every post that links to your site
• Staff briefed on labelling posts from personal accounts
• A 90-day review date in the diary

What to do next

Spend this week on ownership and channel choice, because everything else depends on them. Then build two weeks of content before you publish, so that the first busy week does not end the project. If you would prefer a senior team to plan and run it with you, see how ProntX handles social media or ask for a free audit of what you have now.