What does a marketing agency do? It plans, produces and runs the work that brings customers to your business: the strategy, the posts and videos, the ad campaigns, and the report that shows what came back. For a small business, hiring one means that work gets done every month by people who do it full time.
That is the short answer. Below it comes in layers: the four jobs behind every agency, what each service looks like week to week, what stays on your side of the table, who answers for ad claims, and how the money works.
When we describe an agency at work, we describe our own: FB Digital Agency in Charleston, SC.
The short answer: four jobs an agency takes off your plate
Strip away the service names and almost every agency does some mix of four things.
- Strategy: deciding who you want to reach, what you want them to do and which channels deserve your time and budget. It starts with questions about your customers, your offer and how many new jobs you can actually handle.
- Production: making the material. Posts, short videos, photos, ad copy, a logo, a brand guide. Good production looks like your business; a template filled with stock photos looks like everyone’s.
- Distribution: putting that material in front of people. Publishing on Instagram and Facebook, keeping the accounts active, and running paid campaigns on platforms such as Meta and Google.
- Measurement: counting what happened (reach, clicks, messages, calls, booked jobs) and changing the plan because of it.
Agencies weight these differently. A creative studio leans on production. A media buyer lives in distribution and measurement. A full-service shop tries to cover all four. Whatever the label, ask which of the four jobs you are paying for.
What each service looks like in practice
Service names sound abstract until you see what changes hands. This table uses the services we offer; most local agencies sell some version of the same list.
| Service | What the agency does | What stays with you | What you should see every month |
|---|---|---|---|
| Social media management | Plans and creates content for Instagram and Facebook, reels included, publishes it and runs the accounts day to day | Approving posts and passing along news: a new menu item, a new service, a big job finished | The posts that went out, with reach and engagement |
| Paid traffic | Builds and runs ad campaigns: audience, budget split, creative, tests and adjustments | The ad budget, the payment method on the ad account and a quick reply to every lead | Spend, results (messages, calls, forms, the sales you report) and what was changed |
| Video and photo production | Films and photographs on location for posts and ads | Access to the place, the people who appear and their permission | Finished clips and images ready to publish |
| Branding and logo design | Creates or refreshes the logo and visual identity | Final approval and the story behind the name | Usually a one-time delivery: files in every format you will need |
| Performance report | Puts reach, engagement and conversion data for every campaign in one place | Telling the agency which inquiries became customers | A report you can read in a few minutes |
| Sales support and training | Coaches the people who answer inquiries so more of them become sales | Time for the team to practice and use what they learn | Notes on how inquiries are being handled |
| Marketing consulting | Meets with you every month to line up strategy and results | Decisions on offers, prices and priorities | A meeting that ends with decisions written down |
| Market research | Collects and analyzes data on your industry and competitors to support campaigns | What you know about your customers that no tool shows | Findings tied to a decision: what to say, where to advertise |
Two of these services have their own pages if you want the detail: social media management in Charleston and Facebook and Instagram ads management.
Full-service, digital or creative: the main kinds of agencies
“Marketing agency” covers companies that do very different work. The labels are loose and many firms mix them, but they help you read a proposal.
- Full-service agencies cover strategy, creative, media buying and reporting under one roof. The larger ones add public relations, events and web development.
- Digital agencies concentrate on online channels: social media, paid search and social ads, email, and often websites.
- Creative and branding studios focus on identity, design, photo and video. They make the material; someone else may run it.
- PR firms work on press coverage and reputation rather than ads.
- Specialists stick to one channel (only Google Ads, say) or one industry (only restaurants).
A local agency like ours sits between full-service and digital: social media, paid campaigns, on-location video and photo, and brand identity for small businesses, with the strategy and reporting that tie them together. The type also tells you what proof to ask for. A studio should show its portfolio. A media buyer should show how it reports results.
What stays with you, and what no agency controls
An agency can bring people to your door. It cannot answer your phone, set your prices or do the job well once the customer says yes. Those parts decide whether the marketing pays off, and they stay with you.
On the owner’s side, the work usually comes down to four habits:
- approving content fast enough that it is still timely when it goes out;
- replying to every inquiry, because the platforms can tell you a message arrived but cannot answer it for you;
- telling the agency which inquiries became paying customers, since ad platforms see clicks and forms, not your sales;
- keeping your accounts in your name: the business page, the ad account and the website belong to you, with the agency added as a partner or user.
Then there is what neither of you controls: the ad auctions, the algorithms, what competitors spend, the season. That is why no honest agency guarantees a number of leads or a revenue figure.
What an agency can commit to is the work: what gets made, how often, how it is measured and how quickly it changes. Our sales support and training service exists for the step after the lead, coaching the people who answer inquiries.
Who answers for what an ad promises
The Federal Trade Commission’s guide for small businesses sums up the federal rules in three lines: advertising must be truthful and not deceptive, advertisers must have evidence to back up their claims, and ads cannot be unfair (FTC, Advertising FAQ’s: A Guide for Small Business).
The same guide answers a question owners rarely ask: is the agency responsible too? Yes. According to the FTC, the advertising agency may also be held legally responsible for misleading claims, has a duty to check the evidence behind them independently, and cannot simply rely on the advertiser’s assurance.
To decide whether an agency is liable, the FTC weighs how involved it was in making the ad and whether it knew, or should have known, that a claim was false.
This has a practical side. A careful agency will ask for proof before it writes “licensed and insured,” “best in town” or a before-and-after result into an ad, and it will want written permission before featuring a customer’s face or review. That protects both names on the campaign.
How the fee works, and the bill that goes to Meta or Google
Agencies are usually paid in one of a few ways: a monthly plan or retainer for ongoing work, a project fee for one-off work such as a logo, hourly consulting, or a share of the ad budget they manage. Many combine two of them.
What confuses people is that running ads involves two bills. One is the agency’s fee for the work. The other is the ad spend itself, which Meta or Google charges to the payment method on your ad account. Ask any agency, including us, how the two are handled before you sign.
Price follows scope: how many channels, how many posts and reels a month, how many filming days, whether paid campaigns are managed and how many run at once, and how long the agreement lasts. That is why a quote starts with what your business needs rather than a rate card.
How we work at FB Digital Agency
We are a marketing agency in Charleston working with local businesses such as Sky Restaurant & Bakery, Viva Cleaning Services and VMS Home Painting. A few things shape how we handle the four jobs:
- We film and photograph on location, so the content shows your real place, team and work.
- We work in English and in Portuguese.
- Every campaign is covered in a monthly performance report, and our consulting includes a monthly alignment meeting.
- There are two plans. Start covers social media management, video and photo production, performance marketing campaigns, branding and logo design, and the monthly report. Premium adds paid traffic management, sales support and training, expert consulting and full social media.
If you are deciding whether an agency makes sense for your business, compare the plans on the FB Digital Agency home page and tell us what you need covered. We will say which of the four jobs we would take on and which should stay with you.