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Marketing budget optimization

Stop funding what would have happened anyway

Marketing budget optimization starts with knowing which spend is incremental. Lifesight’s causal engine models every budget shift, and growth agents prepare the move for your approval. Find the right budget mix without guessing.

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Teams who use Lifesight

What is marketing budget optimization?

Marketing budget optimization is the practice of reallocating a fixed media budget across channels to maximize incremental revenue, not reported revenue. It relies on causal evidence, such as marginal ROAS from causal MMM and incrementality tests, rather than platform-reported ROAS, which often overcounts by 20–50%. Lifesight models each proposed shift within your commitments and constraints, then routes it to an owner for approval.

The approach

Set the boundaries

Include commitments before comparing plans. Agree the budget, horizon and channel limits, and include committed activity so every alternative can actually be run.

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Compare the mix

See the move and its estimated iRevenue together. Compare an alternative with your current plan: which channels gain or lose budget, the marginal ROAS evidence, and the range of modeled outcomes.

Approve the next move

Growth agents draft the rationale and the changes. Your owner approves, and supported actions run only within the authority you set.

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Why reported ROAS sends budget to the wrong places

Reported ROAS credits revenue that would have happened anyway, so budgets drift toward channels that look efficient but add little. Lifesight often finds roughly 40% of spend is non-incremental. Optimizing on iROAS and marginal response shows where the next dollar still drives revenue. Seidensticker reached 11.5% higher revenue at 11.7% lower spend.

How it Works

Build causal evidence for every budget decision

Set the budget envelope

Agree the total, objective, commitments and permitted changes.

Model the alternatives

Compare channel mixes within the same limits, using causal MMM and incrementality testing.

Inspect the proposal

Review what moves and the assumptions behind the estimated iRevenue.

Approve the next step

Confirm the owner and execution path, then measure the result.

People + agents

Agents that act, with clear responsibility

Growth agents surface changes, run the investigation and prepare plans and briefs. Your team sets the goal, reviews the causal evidence and defines what agents are authorized to do.

Measurement expertise that stays close to the work

Built around your business

Expertise close to the work

Work with Lifesight experts to set up your measurement program and put growth agents to work. Every engagement is scoped individually, with agreed responsibilities and ongoing support.

Marketing Budget Optimization FAQs

What is marketing budget optimization?

Reallocating a fixed budget across channels to maximize incremental revenue, guided by causal evidence such as marginal ROAS rather than platform-reported results.

Platform-reported ROAS often overcounts by 20–50% and says nothing about the next dollar. Incremental ROAS and marginal response show where additional spend still drives revenue.

Yes. Committed spend, channel floors and caps are set before any mix is modeled.

[Your cadence, for example after each incrementality test or model refresh, and at each planning cycle.]

The objective and time window, which channels move, the marginal ROAS behind each move, and the range of modeled outcomes.

Keep Exploring

Platform

Marketing budget optimization platform

Use incremental evidence and marginal returns to explore a better media mix, with the budget limits and review steps your business needs.

By team

Finance teams

Review incremental contribution, forecast assumptions and proposed allocations on a basis marketing and finance can share.

Platform

Planning and forecasting

Compare media plans against the same objective, budget and constraints, and use modeled outcomes to make the next investment conversation more concrete.