A weak marketing brief transfers uncertainty from the business to the people doing the work. It may contain a long background section, a list of deliverables and an urgent deadline, yet leave the central decision unresolved: what needs to change for which customer, and why?
A strong brief creates useful boundaries. It gives internal teams, agencies and specialists enough clarity to solve the right problem while leaving room for expertise and creativity.
Why marketing briefs fail
Briefs often fail before anyone starts writing or designing. Common causes include:
- the requested deliverable has been chosen before the problem is understood;
- several stakeholders want different outcomes;
- the audience is defined too broadly;
- the proposition is vague or unproven;
- every message is treated as equally important;
- feedback criteria appear after the work is presented;
- the timeline ignores approvals, production or legal review.
The cost is not limited to wasted creative time. Poor briefing creates cautious work, repeated rounds of feedback and campaigns that are difficult to evaluate.
Start with the business problem
Describe the commercial context in plain language. What has changed? What opportunity or constraint makes this work necessary now? What happens if nothing changes?
For example, “create an awareness campaign” is a deliverable. “Increase consideration among procurement leaders who know the category but assume our offer is designed only for large enterprises” is a problem the team can investigate and solve.
Define the customer movement
State who the priority audience is and what should change in their understanding, feeling or behaviour.
A useful sentence is:
We need [specific audience] to move from [current belief or behaviour] to [desired belief or behaviour] because [customer and commercial reason].
This does not reduce marketing to one linear response. It creates a shared centre of gravity for strategy and creative choices.
Use Casale’s customer journey mapping guide to identify the moments where the brief needs to change understanding, confidence or action.
Include evidence, not assumptions disguised as facts
Share the customer interviews, sales insight, search behaviour, performance data and previous learning that shaped the brief. Label assumptions that still need testing.
Evidence should be selected for relevance. Attaching every available document transfers the work of finding the signal to the recipient. Summarise the important points and provide source material for deeper review.
Clarify the proposition and proof
What value are you asking the audience to believe, and why should they believe it? Separate the central promise from supporting messages.
Good proof can include product evidence, customer outcomes, demonstrations, process transparency, credentials or a distinctive point of view. Avoid unsupported superlatives such as “leading”, “innovative” and “best-in-class”.
Give channels a role
Do not list channels without explaining their job in the journey. A broad-reach video, paid search advert, landing page and sales email should not all carry the same amount of information or ask for the same commitment.
For each major touchpoint, clarify whether it should:
- create recognition;
- make the problem relevant;
- build understanding or trust;
- capture existing intent;
- support comparison;
- prompt a specific next step.
Set practical boundaries
Include the confirmed budget, timing, markets, languages, mandatory information, brand rules, accessibility requirements and approval process. Explain which elements are genuinely fixed and which can be challenged.
Hidden constraints damage trust. A creative team cannot make a sensible recommendation if the actual budget or launch dependency appears only after the first presentation.
For work that needs a clear delivery rhythm, Casale’s guide to building a ninety day marketing plan helps connect the brief to priorities, ownership and review points.
Define success before reviewing the work
Set measures that reflect the job of the activity. A campaign designed to build consideration should not be judged only on immediate sales. A conversion journey should not be celebrated for traffic if qualified action does not improve.
Include both outcome measures and useful diagnostic signals. State how and when the work will be reviewed.
A practical marketing brief structure
- Background: the relevant commercial situation.
- Problem: the constraint or opportunity to address.
- Audience: the priority customer and buying context.
- Desired movement: what should change.
- Proposition: the central value and proof.
- Journey and channel roles: where the work fits.
- Deliverables: required outputs, if genuinely known.
- Success: measures and learning goals.
- Constraints: budget, timing, mandatory elements and risks.
- Process: decision owner, contributors and approvals.
How long should a marketing brief be?
Length is less important than clarity. A focused campaign brief may fit on two pages. A complex transformation programme will require more context. Use links and appendices for supporting detail so the main decision remains visible.
If the team cannot explain the brief clearly in conversation, the document is unlikely to solve the problem.
How to run the briefing meeting
Send the brief in advance and use the meeting to discuss, not read it aloud. Invite questions and challenge. Confirm which assumptions need more evidence and who owns the answer.
End with a shared understanding of:
- the problem and priority audience;
- the decision the work must influence;
- the scope and available resources;
- the next milestone;
- who gives consolidated feedback and final approval.
Give better feedback against the brief
Feedback should explain how the work does or does not answer the agreed problem. “I do not like it” provides little direction. “The opening assumes customers already understand the category, but our evidence shows they do not” connects the response to strategy.
Consolidate stakeholder feedback before sending it. Contradictory comments should be resolved by the decision owner, not passed to the creative team to negotiate.
Frequently asked questions
Should an agency help write the brief?
Yes, particularly where diagnosis and channel strategy are part of the assignment. The business should still provide commercial context, evidence and clear decision ownership.
When should deliverables be left open?
When the problem is clear but the best solution is not. Allow specialists to recommend the format and channel rather than prescribing an output too early.
Who should approve the brief?
The person accountable for the commercial outcome should approve the direction, with relevant specialists confirming feasibility, risk and requirements.
Can a brief change after work begins?
Yes, when meaningful evidence or the business context changes. Make the change explicit and agree the effect on scope, timing and budget.
Better work starts with a better problem
Casale works with ambitious teams to find the signal, set the direction and turn strategy into distinctive delivery. Explore our capabilities or bring us a brief that needs sharpening.