Guide · How-to
How to brief a marketing agency (the right way)
Bad briefs produce bad work. The right brief covers six things: business context, the specific problem to solve, the audience, the success metric, the budget range, and the timeline. Most briefs miss at least three of these — and the work suffers.
When to read this:Read this before sending your first email or hopping on your first discovery call with any agency.
The steps
How to do it.
- 1
Lead with the business context
What does your business do? Who are your customers (one sentence)? What stage are you in (pre-revenue, early-stage, scaling, mature)? Most briefs start with the marketing problem — but the marketing problem can't be solved without the business context.
- 2
Define the SPECIFIC problem
Vague: 'We want more sales.' Specific: 'Our paid lead cost has tripled in 6 months while close rate stayed flat — we need to reduce cost-per-customer by 40% within 90 days.' Specific briefs get specific solutions.
- 3
Describe the audience like a person
Who do you actually sell to? Demographics matter less than psychographics. 'Founders of Kerala SMBs doing ₹2-10Cr revenue, frustrated with marketing returns, sceptical of agencies after past bad experiences.' This level of detail unlocks creative that resonates.
- 4
Name the success metric
What will 'success' look like in 90 days? In 12 months? Pick 1-2 metrics. If you can't articulate it, the agency will pick their own — usually impressions or clicks.
- 5
State the budget range honestly
Briefs without budget waste everyone's time. State a range: 'Our budget for this is ₹X-Y depending on scope.' Agencies who can do quality work in that range will engage; those who can't will say so upfront.
- 6
Be honest about timeline + flexibility
When do you need this delivered? Is the date firm or flexible? Is there a board meeting / funding round / seasonal launch driving urgency? Context matters — and rushed briefs produce rushed work.
Red flags
What to avoid.
- Refusing to share budget range (almost guarantees a bad fit)
- Asking 'what would you do' before sharing your business context (you'll get generic pitches)
- Briefing five agencies at once without telling them (they spend hours on speculative work + word gets around)
- Briefing the agency junior + then expecting senior delivery
Where Adsomia fits
Our honest take.
Adsomia takes briefs in a 30-min discovery call. We refuse to write a proposal without first having that call — generic written proposals waste everyone's time. After the call, we send a written scope within 48 hours. If you're shopping multiple agencies (totally fine), we'll tell you upfront whether we're the right fit or recommend someone else.
Common questions
FAQs.
How long should a brief be?
One page maximum. Anything longer is either too detailed (the agency should ask the rest in the discovery call) or unfocused.
Should I write the brief myself or have someone write it for me?
Write it yourself if you can. The discipline of writing it forces clarity. If you can't write it, that's the first sign you need a Fractional CMO before an execution agency.
What if my brief is for a one-off project not a retainer?
Same structure. Be even MORE specific on the success metric since the timeline is short and the budget is fixed.
Want help applying this to your business?
30-min discovery call. We listen first; written scope inside 48 hours; first deliverable in 14 days.