Strategy says what; the idea makes people care
A brand can have a sharp position and a clear proposition and still produce forgettable advertising. Strategy tells you what to say. It does not tell you how to say it in a way that earns attention, sticks in memory and can be repeated for years without becoming wallpaper. That is the job of the big idea.
A big idea is a creative platform: a single thought, often expressible in a sentence, that turns the proposition into something people want to watch, share or remember. Individual ads are executions of it. Taglines are compressions of it. The idea itself is the generator that keeps producing new work.
An execution is a firework; an idea is the factory that keeps making them.
Where the big idea sits
Fig. 01 · Process
Tap to explore
From strategy to execution
Notice that the idea comes after the insight. Ideas built only on the product tend to be clever claims; ideas built on a human insight tend to be stories people recognise themselves in. The creative brief is where the proposition and insight are set down for the creative team to work from.
What makes an idea big
Fig. 02 · Overlap
Tap to explore
The three qualities of a big idea
CentreA platform the brand can own
- True to the brand. It grows from the positioning and could only belong to this brand. Swap in a competitor’s name and it should stop working.
- Distinctive and surprising. It breaks the category’s conventions enough to be noticed. Safe ideas are invisible.
- Simple. It can be explained in a sentence. Complex ideas fragment as they pass through many hands.
- Elastic. It can be expressed in a long film, a six-second clip, a poster, a pack, a social post, an event and a customer-service script.
- Durable. It can run for years, with fresh executions, without exhausting itself.
Big idea, tagline and campaign: not the same
| Term | What it is | Lifespan | Test |
|---|---|---|---|
| Big idea | The creative platform that dramatises the proposition | Years | Can it generate many different executions? |
| Tagline | A short line that signs off the communication | Often as long as the idea | Is it a memorable compression of the idea? |
| Campaign | A coordinated burst of activity | Weeks to months | Does it express the idea in a fresh way? |
| Execution | A single piece of work | As long as it runs | Does it work in its channel? |
Confusing these leads to familiar problems. A team mistakes a good tagline for an idea and then cannot work out what the next campaign should be. Or a team treats each campaign as a new idea, so the brand changes its creative direction every season and never builds memory.
How big ideas are found
- 01Start from a sharp brief. One proposition, a genuine insight, a clear audience. Vague briefs produce vague ideas.
- 02Generate widely. Many territories, not variations of one. Include deliberately unexpected directions.
- 03Write ideas as sentences, not ads. ‘The brand that…’ or ‘What if we…’ forces clarity about the thought before the execution.
- 04Stress-test elasticity. For each promising idea, sketch how it would work in at least five formats, from a long film to a WhatsApp message to a shop window.
- 05Check ownership. Could a competitor run this? If yes, it is not yet a brand idea.
- 06Choose and commit. Pick one platform and give it time. Ideas need repetition to become associated with a brand.
Myths about big ideas
Myth vs reality
What gets in the way
Ideas for business-to-business brands
B2B marketers sometimes assume big ideas belong to consumer advertising. In practice, B2B brands often need them more. Their buyers are people, subject to the same limits of attention and memory, and they meet B2B brands through a scattered mix of trade content, events, sales conversations, LinkedIn posts and proposals. A single idea gives that scattered presence a shape.
B2B ideas tend to work best when they dramatise a professional tension the buyer feels — risk, complexity, internal politics, wasted time — rather than listing capabilities. A strong idea also gives sales teams a story to tell, which is often where B2B brands are most visibly experienced.
Do you have a big idea?
Self-diagnostic
0/5Five questions about your current creative platform
Answer for the creative work your brand is running now.
01Can you state your current creative idea in one sentence without describing a specific ad?
If yes: You have a platform. Check whether it is owned and elastic. If no: You may have campaigns but no idea. Brief for a platform, not another campaign.02Would the idea stop working if a competitor’s name replaced yours?
If yes: It is genuinely yours. If no: It is a category idea. Sharpen it with your specific proposition and insight.03Has the same idea run across at least two campaigns?
If yes: You are building memory. If no: Each campaign may be resetting recognition. Consider committing to one platform.04Does it work in short vertical video as well as longer formats?
If yes: It is elastic enough for today’s channels. If no: Explore how the idea could be expressed in the first seconds of a short video.05Do performance ads use the same idea and assets?
If yes: Every ad builds the brand. If no: Bring performance creative into the platform so conversion activity also builds memory.
It also helps to write the idea down in a short platform document: the proposition, the insight, the idea in one sentence, the distinctive assets that travel with it, and a handful of example executions that show its range. New team members and agencies can then extend the idea rather than reinventing it, and proposed executions can be judged against something more concrete than memory. Revisit the document each year, adding the executions that worked best.
Keeping an idea alive
Long-running ideas survive because someone protects them. Brand owners must resist the constant pressure for novelty — from new executives, new agencies and their own fatigue — while still demanding fresh executions. A good test when a change is proposed: is the strategy changing, or are we just bored? Only the first is a reason to replace the idea.
Ideas also need to travel well across the whole system. Plan them as integrated campaigns from the start, express them through consistent art direction, and measure their contribution through brand awareness tracking, not only short-term response. For how ideas carry across video formats, see video ad creative.
Key takeaways
- 01The big idea is the creative platform that turns a proposition into something memorable and repeatable.
- 02Strong ideas are true to the brand, distinctive, simple, elastic and durable.
- 03A tagline compresses the idea; a campaign expresses it; neither is the idea itself.
- 04Test elasticity by sketching many executions across very different formats.
- 05Change executions often and ideas rarely — only when the strategy changes.
Frequently asked
- What is the big idea in advertising?
- The big idea is a single, simple creative concept that expresses a brand’s proposition in a distinctive and memorable way, and that can be executed across many channels and over many years. It acts as a platform from which individual campaigns and ads are created.
- What makes a good big idea?
- A good big idea is rooted in the brand’s positioning and a real audience insight, is distinctive enough to stand out in the category, is simple enough to explain in a sentence, is elastic across formats and channels, and is durable enough to sustain fresh executions for years.
- What is the difference between a big idea and a tagline?
- The big idea is the underlying creative thought that generates the work. A tagline is a short line that signs off communication and often compresses the idea into words. A tagline can be memorable without an idea behind it, but then it rarely sustains a campaign platform.
- How do you come up with a big idea?
- Start from a focused brief with a clear proposition and genuine insight. Explore many creative territories, write ideas as sentences rather than ads, test each for ownership and elasticity by sketching executions across formats, then commit to one and give it time to build memory.
- Are big ideas still relevant in digital marketing?
- Yes. With so many channels and formats, a unifying idea helps every piece of content reinforce the same memory. Without one, brands risk producing many disconnected assets that perform individually but build little lasting recognition.
Published by Fabulous.Media, a network of specialist marketing agencies. Updated 9 October 2026. Platform features change often; check current official documentation before acting on platform-specific detail.
