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Insights · May 2026

How to Brief a Marketing Agency

A good marketing agency can bring ideas, structure and experience. But the quality of the work often depends on the quality of the brief.

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How to Brief a Marketing Agency

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A good marketing agency can bring ideas, structure and experience. But the quality of the work often depends on the quality of the brief.

A vague brief usually leads to vague work. A clear brief gives the agency a better chance of delivering something useful first time.

Briefing an agency does not need to be complicated. It just needs to be honest, focused and practical.

Start with the business problem

Many briefs jump straight into the deliverable.

“We need a new website.”
“We need social media posts.”
“We need a brochure.”
“We need Google Ads.”

These may be valid, but they are not the full brief. The agency needs to understand the problem behind the request.

For example:

“Our website looks dated and we are losing enquiries to competitors.”
“We are getting traffic, but not enough leads.”
“Our sales team needs better materials.”
“We are launching a new service and need to explain it clearly.”
“We are spending money on marketing but cannot see what is working.”

The clearer the problem, the better the solution.

Explain who you are trying to reach

Marketing should be built around the audience. If the agency does not know who the work is for, the message may miss the mark.

Useful audience information includes:

Who buys from you
Who influences the decision
What problems they have
What they already understand
What they misunderstand
What matters most to them
What would stop them enquiring
Whether they are local, regional or national

You do not need a complicated customer profile. You do need a practical picture of who the work must persuade.

Be honest about what has not worked

Some businesses avoid talking about past failures. That is a mistake.

If a campaign failed, say so. If a website redesign did not improve enquiries, explain what happened. If social media has been inconsistent, be open about it. If previous agencies disappointed you, explain why.

This helps the new agency avoid repeating the same mistakes.

A good agency will not judge you for past problems. They will use that information to make better decisions.

Share the commercial goal

Marketing should connect to business outcomes. The agency needs to know what success looks like.

Possible goals include:

More enquiries
Better quality enquiries
More bookings
More repeat business
Improved local visibility
Stronger recruitment
Better brand perception
Support for sales teams
Higher website conversion
More awareness of a new service

Be specific where possible. “More enquiries” is useful, but “more enquiries for our commercial service from Glasgow-based businesses” is better.

Provide practical background

An agency needs enough context to understand your business quickly.

Useful background includes:

Main services
Most profitable services
Least profitable services
Geographic areas served
Main competitors
Current marketing activity
Sales process
Typical customer questions
Pricing structure where relevant
Seasonal patterns
Internal capacity
Approval process

This does not need to be polished. Bullet points are fine.

Set clear boundaries

A good brief should explain what is in scope and what is not.

For example:

Is copywriting included?
Are photographs needed?
Who provides login details?
Who approves the work?
Are there brand guidelines?
Are there legal restrictions?
Are there deadlines?
Is print required as well as digital?
Are there services you do not want promoted?

Clear boundaries avoid confusion later.

Give examples, but do not copy competitors

It is helpful to show examples of websites, adverts or campaigns you like. It gives the agency a sense of taste and expectation.

However, examples should be used carefully. The aim is not to copy another business. It is to understand what feels right or wrong.

When sharing examples, explain why you like them.

For example:

“We like how simple this page is.”
“We like the tone of voice.”
“We like the clear pricing explanation.”
“We dislike how cluttered this design feels.”
“We want to avoid sounding too corporate.”

This is more useful than sending links with no explanation.

Be clear about decision-makers

Projects slow down when too many people are involved without a clear process.

Tell the agency who will approve the work, who will provide feedback and who has final sign-off.

If several people need to comment, combine feedback into one clear response. Mixed comments from multiple people can cause delays and confusion.

A strong approval process helps everyone.

Give honest deadlines

If there is a real deadline, say so. If the deadline is flexible, say that too.

Agencies can plan better when they know the truth. A false urgent deadline can put pressure on the project unnecessarily. A hidden deadline can cause problems later.

Explain any important dates, such as:

Launch dates
Events
Campaign periods
Seasonal peaks
Print deadlines
Board meetings
Funding deadlines
Recruitment windows

Leave room for professional advice

A brief should be clear, but not so rigid that it blocks better ideas.

You may think you need one thing, but the agency may identify a better route. For example, a business may ask for more adverts when the real issue is a weak landing page. Another may ask for a new website when a content update would solve the problem.

A good brief explains the problem and desired outcome. It should also allow room for expert recommendation.

Final thoughts

A strong agency brief saves time, reduces confusion and improves the quality of the work.

The best briefs are not necessarily long. They are clear. They explain the business problem, audience, goals, background, limits and decision process.

Good marketing is a partnership. The better the brief, the better the work is likely to be.

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