How to Write a One-Page Campaign Brief Before Buying Ads

A one-page campaign brief tells a client and a freelancer what they are trying to achieve, who they need to reach, what they will make and how they will judge the result. Write it before the first ad is designed. A useful first sentence is “We want [specific audience] to [observable action] by [date].”

A one-page campaign brief template

Copy these seven lines into a shared document. Fill them in together before anyone commits money to the campaign.

Goal — By [date], we want [number] people to [action].
Audience — We’re speaking to [group] who are currently [situation].
Offer and message — They can [benefit]. We can show them [evidence].
Deliverables — [Owner] will make [assets] for [channel], pointing to [destination].
Budget and dates — We can spend up to [amount] between [start] and [end].
Measurement — Count [event] in [source]. Check it on [date].
Sign-off — [Name] approves the offer, creative and destination by [deadline].

Worked example for a freelance marketer

Imagine a pottery studio with six open places in its Saturday beginner class. The owner asks a freelancer to “get more visibility.” A brief can turn that request into a decision the owner can actually check.

Goal and audience. Fill six seats by Thursday evening. Speak to adults within an easy trip of the studio who want to try pottery for the first time.

Offer and assets. Show an actual beginner shaping a cup and explain that materials are included. Make one vertical video and one still image. Both lead to the booking page for that Saturday’s class.

Spend and approval. For this example, the owner sets a $90 maximum and approves both assets on Monday. The freelancer checks that the booking link opens the right date on a phone before launch.

Measurement. The booking system records paid seats. Tag the campaign link and keep bookings with an unknown source separate. Report total seats filled alongside bookings traced to the campaign. Six link clicks alone would leave the studio’s original question unanswered.

What to settle when the brief is still vague

If the client wants both awareness and bookings, ask which result would justify running the campaign again. If the client says bookings, put paid seats at the top. Reach can still help diagnose a slow start. If the booking page receives visits but nobody completes payment, try the checkout yourself before changing the audience.

A second pair of eyes can catch a gap quickly. Give the brief to someone outside the project and ask them to name the audience, the action and the person approving the work. Each answer should be easy to find. For another brief structure covering stakeholders and deliverables, see Asana’s guide to creative briefs.

For a guided version, The Campaign Brief Bundle from Booklet Store includes a SMART goals guide and targeting and launch checklists. Use the goals guide to sharpen the first line, then take the launch checklist to the final sign-off.