How to choose an influencer for a campaign: criteria that matter

Choosing a creator almost always starts with the wrong question: how many followers do they have. It is the first number you see and the only one that says almost nothing about the result.
The right order is the opposite: decide what has to be produced, then look for the person who produces it. Three different goals mean three different shortlists, and the person who is perfect for one job is useless for another.
The goal first, the person second
You need reach — you are buying somebody else's audience. Then it matters who those people are: which city, what age, whether they buy this kind of thing at all. Size counts, but only after the audience matches.
You need material for your own ads — you are buying the ability to film. Account size does not matter here at all; the portfolio does, and so does how the person behaves on camera. A creator with three thousand followers can hand you a video that outperforms a post from someone with a hundred thousand.
You need sales now — you are buying trust. What decides it is whether people listen when this person recommends something, not how many follow them.
Until the goal is said out loud, every shortlist is a shortlist by guesswork.
What to look at in a profile
The subject, not the “category”. The match has to be narrow. Someone who films about food and someone who films about healthy eating have two different audiences, and only one of them fits your product.
Who actually watches. City, age, language. If you sell in Warsaw and half the audience is abroad, you are paying for impressions delivered to people who cannot buy.
How the comments behave. What they say matters more than how many there are. Questions about the product, replies from the author, names that come back — that is a live audience. A garland of “super!” and emoji under every post is the opposite.
The history of collaborations. Look at the last ten sponsored posts. If it runs jewellery, a car workshop, supplements and payday loans back to back, this person is selling space rather than a recommendation — and their audience worked that out long ago.
Consistency. A profile that wakes up once a month will not give a predictable result, however good it looks.
How the person writes. The reply to your first message is already part of the job. If a simple question takes three days, delivery will feel the same.

What not to do
Do not chase size. A large account costs more and almost always returns less per unit spent. It is not a rule, it is a pattern visible in any campaign that runs several creators side by side.
Do not trust a single number. Followers, likes and engagement rate say nothing on their own. What you read is the combination: who the audience is, what it does, and what the person filmed before.
Do not order a format the person does not make. Someone good at stories will not necessarily film a selling video for ads. These are separate skills, and a portfolio is more honest than a promise.
Do not open the conversation without terms. Half of all threads die on “what do you pay”. Terms stated up front save both sides a week.
How this works on Blogger Bank
This part is about what the platform changes.
You are not persuading anyone — the ones who agree come to you. You publish a job that already states everything: format, deadline, fee or barter, rights to the material. Only those who accept those terms apply. It turns the work around: instead of writing to strangers and waiting, you review offers from people who have already said yes to your terms and want the job.
From platform data as of 21 August 2026: 99 percent of visible jobs receive offers, and over the last twelve months — 100 percent. The first offer usually arrives in under an hour, 80 percent of jobs get one within a day, and a job collects 37 offers on average. That is dozens of options to choose from instead of the one person who picked up the phone.
If you would rather choose yourself, there is a creator catalogue. A profile holds exactly what manual searching on Instagram does not give you:
- a portfolio — what the person has already filmed, rather than how they describe themselves;
- a description and categories — the subject they work in;
- rates — what it costs, before the first message;
- Instagram statistics — verified profiles show reach and audience composition, not just a follower count.
The last point is where the difference sits. Normally statistics are requested as screenshots and taken on trust; here they come from a connected account and are visible before the conversation starts.
Both at once. Nothing stops you from publishing a job and inviting the people you spotted in the catalogue to apply to it.

If writing a brief from scratch does not appeal, you can simply walk through the job creation steps: the form asks in order — what the product is and a link to it, which format and platform, what to show in detail, location, dates, the fee or the barter item with its estimated value. It is the same brief, laid out across fields, and it is harder to forget the rights or the deadline than in free text. If you want the reasoning first, we covered how to write a brief separately. The whole process, from publishing to accepting the work, is on the page for brands.
Frequently asked questions
How do you choose an influencer for a campaign?
Start from the goal: reach, material for your own ads, or sales. Then check the subject match, the audience composition, what the comments say, the history of sponsored posts and consistency. The follower count is read last.
How many followers should an influencer have?
As many as the job requires. For material used in your own ads, account size does not matter — the portfolio decides. For reach, what matters is not size itself but the overlap between their audience and your buyer.
How do you check whether an audience is real?
Read what the comments say rather than counting them: questions on topic and replies from the author, against identical “super” from accounts with no photos. Then the statistics: city and age have to match your market.
What matters more, engagement or reach?
It depends on the job. Reach answers how many people will see it, engagement answers whether this person is listened to. Neither number on its own predicts sales.
How do you know a creator can handle the format?
From the portfolio. Running stories and filming a selling video are separate skills. If the format you need is missing from their work, that is a risk rather than a guess.
Is it worth working with several creators at once?
Usually yes. Several versions of the material from different people show which way of talking about the product works; one creator gives one result and nothing to compare it with.
What do you do when dozens of people apply?
Look at portfolios and audience match rather than follower counts. A job with a fixed format, deadline and fee rules out part of the applicants by itself.
How is a creator catalogue different from searching on Instagram?
A profile shows the portfolio, categories and rates immediately, and verified accounts show confirmed reach and audience data. Searching manually, you have to request all of that in messages and take it on trust.


