The most common social media marketing agency results look like this: the follower count climbs every month and the sales ledger does not move.
Nobody lied. The posts went out and the report arrived with every graph pointing up. The business did not get any busier.
We see this shape in businesses that come to us after a first agency has not worked out. Month one looks like progress. Month three is when the owner starts to feel uneasy. By month six they have paid for half a year of content and cannot name one customer who came from it.
The point of this article is to pull that moment forward to month two, while there is still time to change the brief or leave cheaply. If you are still at the stage of choosing a digital marketing agency in the UK, the same warning signs apply before you sign.
Why followers and sales come apart
Followers and sales come apart because they are produced by different work. Growing a follower count rewards content that is broad, frequent and easy to like. Producing enquiries rewards content that reaches the small number of people who need what you sell this quarter, then gives them an obvious next step.
An agency paid on a monthly retainer, and judged on a monthly report, drifts towards the first kind of work. It is faster to show and never embarrassing. A chart of followers going up always looks like success, whatever is happening in the business underneath it.
Hassan, who writes the One-Person Business newsletter, described the end state of this in a December 2025 post: a creator posting several times a day for years, 200,000 followers, and an empty bank account. His conclusion was that "the problem wasn't audience size. It was audience fit."
The same thing happens at a much smaller scale with a plumbing firm in Kettering. The agency grows an audience of other marketers, people who liked a meme, and the owner's friends. None of them need a boiler.
Alison Piepmeyer, writing in The Grid Report in October 2024, had watched accounts with hundreds of thousands of followers struggle to sell while accounts under 5,000 could not keep up with orders. Her line: "Followers are a vanity metric, and they don't really mean what you think they do."
How agencies measure themselves, according to their own leaders
Social teams mostly measure themselves on engagement, and the people who run them know it. Sprout Social's 2025 Impact of Social Media Report surveyed 1,200 marketing leaders in the US, UK and Australia in June 2025. It found that 68% of leaders define social ROI by engagement, 65% by conversion and 57% by revenue.
Only 44% of those leaders rated their own social team as expert at measuring the business impact of social. Fewer than half said their team puts social data into any form of CRM. The CRM is the one place where a follower and a paying customer can be matched up.
xychart-beta
title "How marketing leaders define social media ROI (Sprout Social, 2025, n=1,200)"
x-axis ["Engagement", "Conversion", "Revenue", "Efficiency", "Discoverability"]
y-axis "Percentage of leaders" 0 --> 100
bar [68, 65, 57, 55, 51]
Hootsuite's Social Trends report for 2023, summarised by Media in Canada, found the same gap from the other side. Among 10,643 marketers surveyed in 109 countries, practitioners were 17% more likely than C-suite executives to use impressions or views to demonstrate ROI. C-level executives were 13% more likely than practitioners to use sales or revenue.
Put the two surveys together and you have the mechanism behind "followers up, sales flat". The people doing the work measure reach. The people paying for it want revenue. Unless someone forces the two to meet, the monthly report gets written in the language of the first group, because that is the data they have to hand.
What business owners say when it happens to them
Business owners describe this experience in plain terms, and they have been describing it for a decade. In a 2015 thread on UK Business Forums, the original poster had been quoted £250 a month for two Facebook posts a week. His view: "Followers are fine but conversions are the important element."
Another member in the same thread suggested the cheapest test there is: "Have you tried not posting anything for a week and seeing what happens to your sales?" A third said he would spend the money on pay-per-click instead because "at least you can measure roi much better." If paid social is where the budget goes instead, the same demand for traceable enquiries shapes how to structure Facebook ads for a local business.
On Reddit, a December 2025 thread in r/digital_marketing argued that most small businesses do not need more social media, they need better follow-up. A commenter with a sales background put it like this:
You can have 50k followers but if you're not following up on actual leads you're just playing pretend marketing.
u/Western_Tomato_192, r/digital_marketing
That comment points at something the vanity-metrics argument usually misses. Sometimes the agency did generate interest, and the enquiries died in an inbox nobody checked until Thursday. Month two is also when you find that out.
Why month two, and not month one or month six
Month two is the earliest point at which the data means anything and the latest point at which leaving is cheap. For other services the review point differs, which is why it helps to know how to tell if your agency is working by day 90. In month one the agency is still learning your business and the audience is cold. Any enquiry that arrives is as likely to have come from a Google search as from a post. One month proves nothing either way.
By the end of month two there are eight weeks of posts, eight weeks of analytics and eight weeks of enquiries to line up against each other. If nobody has matched the three sets of data by then, it is not going to happen in month five without someone insisting on it.
Most UK retainers we have seen run on 30 days' notice after an initial term of three months. Ask the hard questions at the end of month two and you can act on the answers before the initial term runs out. Leave it to the first quarterly review and you pay for a fourth month while you think about it.
The three month-two questions to ask your agency
Ask your agency these three questions at the end of month two, and judge it on whether the answers come from your own systems or from the platform's dashboard. They sit alongside the broader questions to ask a marketing agency before you ever sign.
1. Where did every enquiry in the last 60 days come from?
The agency should give you the actual list, with a source against each entry, instead of "social" as a category. Phone calls, contact form submissions, direct messages, walk-ins.
If the agency has never asked for your enquiry log, it has no way of knowing whether its work produced any of them. If you do not keep one, a shared spreadsheet with date, name, source and outcome is enough. Start it this week.
2. What did the UTM data show?
Every link the agency posts should carry campaign parameters so Google Analytics can tell you which post sent the visit. Google's guidance on collecting campaign data with custom URLs defines utm_source as the referrer, utm_medium as the marketing medium and utm_content as the tag that tells two creatives apart.
An agency that posts bare links to your homepage has chosen not to be measured. Ask to see the GA4 traffic acquisition report by session source and medium, and ask how many of those sessions triggered a key event such as a form submission or a call.
3. Which posts drove profile visits, and which of those became website clicks?
Instagram, LinkedIn and Facebook all show profile visits and link clicks per post. Read together, those two numbers separate posts that people enjoyed from posts that made someone want to find out who you are.
An agency that reports reach and likes but never the step from profile to website is reporting the part of the funnel that costs you nothing and earns you nothing.
There is a fourth question, and it is for you. How quickly did someone reply to the enquiries that did arrive? If the answer is "the next day" or "we missed a couple", the agency is not the only problem.
The vanity metric and the metric that replaces it
A vanity metric is a number that goes up without anything changing in the business. The replacement in each case is one step closer to a sale, and comes from data you own.
| What the report shows | What it actually measures | What to ask for instead | Where the replacement comes from |
|---|---|---|---|
| Followers gained | People who tapped a button once | New enquiries, with a source recorded against each | Your enquiry log or CRM |
| Reach and impressions | How often the platform chose to show the post | Website sessions from social, broken down by post | GA4 traffic acquisition, with UTM tags on every link |
| Likes and comments | Whether the post was pleasant to see | Profile visits and link clicks per post | Platform insights, per post |
| Engagement rate | Likes and comments divided by followers | Conversion rate of social sessions | GA4 key events by session source and medium |
| Posts published | That the agency did the work | Cost per enquiry from social | Monthly retainer divided by enquiries traced to social |
| Video views | Three seconds of attention | Direct messages asking about price or availability | Your inbox, counted monthly |
None of the replacement metrics needs expensive software. A spreadsheet, a properly configured GA4 property and ten minutes a month counting messages will cover a business spending £1,000 to £3,000 a month on social. The agency should be doing that counting. If it is not, you now know why the report looks the way it does.
What a good month-two report looks like
A good month-two report leads with enquiries and works backwards to content, the same test that separates an activity report from an outcome report in any channel. It says how many enquiries arrived, how many the agency can trace to a specific post, which posts those were, and what it will do more of in month three. The follower count is on page two, if it is there at all.
A report like that is usually less flattering than the vanity version. It might say three enquiries, one traced to a LinkedIn post about pricing, two with no identifiable source. That is a baseline, and a baseline tells both sides what to test next. A hundred new followers tells nobody anything.
Do not accept a report that cannot be checked against anything you own. If every number comes from the platform's dashboard and none from your inbox, your phone or your analytics, the agency is marking its own homework.
When followers up and sales flat is fine, for now
Some businesses should expect a flat sales line at month two, and it is only fair to say which ones. A professional services firm selling a £40,000 service with a six-month buying cycle will not see social enquiries convert inside eight weeks. A dental practice that is full until spring may want awareness more than bookings.
Even then, the month-two questions still apply. The thing being measured moves back a step, from sales to enquiries, or from enquiries to website clicks. The demand that the agency trace its work to something in your systems stays the same.
The agency that says "it's a brand thing, you can't really measure it" has given you its answer, and it is the same answer it will give in month six.
Our rule is simple to apply. If by the end of month two the agency cannot show you one enquiry traced to one post, using data you can check yourself, change the brief before month three starts. If it will not be measured that way at all, the follower chart will keep going up and nothing else will.
If you want social or paid activity set up so that enquiries are traceable from the first post, our paid media team builds the tracking before the first campaign goes live, or you can talk to us about how we report.