What Does a Marketing Agency Actually Do? (In Plain English)

When Hashtaggz started, it was just social media management from my home office. Today it’s paid ads, SEO and GEO too, and I’ve noticed that even business owners who’ve worked with agencies before aren’t always sure what they were paying for.

So here’s what a marketing agency actually does, without the jargon.

What does a marketing agency do?

A marketing agency helps you get more customers by making sure the right people find you, trust you and get in touch. That usually means managing your social media, running ads on Google and Meta, improving your website and Google rankings, and reporting on what’s working.

Some agencies do everything. Others specialise in one thing, like SEO or Facebook Ads. Neither is better, it just depends on what you need.

What does a social media manager do?

A social media manager plans, creates and posts content for your business, replies to comments and messages, and keeps an eye on what’s working. Done properly, it’s far more than posting a few photos.

A typical month includes planning the content calendar, writing captions, editing photos and Reels, scheduling posts, replying to people and checking the numbers. In Marbella, it often includes posting in English (and sometimes Spanish) so you reach both local and international customers.

What does an ads manager do?

An ads manager sets up and runs your paid adverts on platforms like Facebook, Instagram and Google, then keeps improving them so you get more customers for less money. They choose who sees your ads, write and test the ads, and watch the budget.

The bit most people don’t see is the testing. A good ads manager is constantly trying new images, new wording and new audiences, then switching off what isn’t working. (That’s where most of the money is saved.)

What does an SEO specialist do?

An SEO specialist helps your website show up higher on Google when people search for what you offer. That includes fixing technical problems on your site, writing useful content, getting your Google Business Profile right and building your reputation online.

For a Marbella business, local SEO is a big part of it. That means appearing in the map results when someone searches “physio near me” in San Pedro or “estate agent Estepona”.

What is GEO and does my business need it?

GEO (Generative Engine Optimisation) is about getting your business mentioned when people ask AI tools like ChatGPT for recommendations, for example “what’s the best pilates studio in Marbella?” It builds on SEO, with extra work on how your information is structured and described online.

More and more people search this way now, so it’s worth thinking about, especially in competitive niches like aesthetics, dentistry and real estate.

What does a marketing strategy involve?

A marketing strategy is the plan behind everything: who your best customers are, where to find them, what to say to them and how to measure success. Without it, you’re just posting and hoping.

A good strategy for a Marbella business takes the season into account, the nationalities you serve, and your budget. It should fit on a few pages, not a 60-page document nobody reads.

What does a marketing agency NOT do?

A marketing agency doesn’t run your business, answer your phone or close your sales. They bring you the enquiries. What you do with them is up to you.

They also can’t make you something you’re not. If your reviews say the service is slow, marketing won’t fix that. It’ll just get more people to read those reviews.

How do I know what services I need?

Start with what you want more of. More bookings from people searching right now? Google Ads and SEO. More awareness and trust? Social media. A launch or event? Meta Ads. Most businesses need two or three of these working together, not everything at once.

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Frequently asked questions

What’s the difference between a marketing agency and an advertising agency?

An advertising agency focuses mainly on paid adverts. A marketing agency usually covers more, including social media, SEO, content and strategy.

Do I need to be involved if I hire an agency?

Yes, a little. Expect to approve content, share photos and news, and have a short monthly catch-up.

Can an agency manage my Google Business Profile?

Yes. Most agencies can update your profile, add photos and posts, and help you collect and reply to reviews.

Do marketing agencies in Marbella work in English and Spanish?

Some do both. Hashtaggz works in English, which suits businesses whose customers are mainly international.

Want to know which services would actually help you?

Drop me a message on WhatsApp and tell me what your business does. I’ll tell you which one or two things I’d focus on first, and what I’d leave for later.

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Found this useful? Follow Hashtaggz Marketing on Facebook for more practical marketing tips for Costa del Sol businesses: facebook.com/hashtaggzmarketing

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