One of the fastest ways to waste your budget on ads is scaling ad spend without optimizing ad performance. It is vital to develop a robust framework for growing ad spend. This involves optimizing for profitability first, then scaling for reach when specific performance criteria are met. This guide will show you exactly when to scale vs. when you need to optimize.
When to optimize
The first phase of your campaign should involve optimizing to create a solid foundation from which you can scale from. A fresh campaign may be inconsistent or unprofitable, so pouring money into a weak funnel will intensify inefficiencies. At this point, you should be identifying signs to optimize your campaign. Here are the signs you should be looking out for:
- Inconsistent performance: If ROAS or CPA varies vastly from week to week.
- Low conversion rates: If your ads get clicks, but visitors don’t buy.
- High CPA and low ROAS: Your cost per acquisition exceeds your break-even point.
- High Ad frequency: The same people are viewing your ad too often, leading to “ad fatigue”.
- Unproven Offer: You are testing new creatives, landing pages, or a new product.
How to optimize
Once you have identified the main signs that your campaign requires optimization, it’s time to act on this. These are the actions you should take to optimize your campaigns, offering a stable foundation for scaling.
- Creative refresh: Test new headlines, images, or video formats.
- Landing page (CRO): Improve your site’s load speed, simplify forms, or align ad messaging with the offer.
- Audience refining: Cut underperforming placements or demographics to optimize reach.
- Funnel strengthening: Fix drop-outs in the checkout process.
When to scale
The second phase begins once your campaign is stable, profitable, and ready for more traffic. This is when you should scale your campaign. These are the signs you should be looking out for:
- Predictable and consistent results: if you have maintained a stable CPA/ROAS for 7-14 days.
- High-value audience proven: if you have identified specific targeting (e.g., a 1% lookalike) that works.
- Clear profitability: If your ROAS is consistently above your break-even point.
- Sufficient data: The campaign has exited the learning phase (typically 50+ conversions per week).
- Operational capacity: If you sales or logistics team can handle increased lead/order volume
How to scale
Once you have identified these key signs, it’s time to scale your campaign. These are the actions you should take to scale your campaign:
- Vertical scaling: start increasing the budget of an existing winning campaign by 15-30% every 3-5 days to avoid triggering the “learning phase” again.
- Horizontal scaling: duplicate the winning ad set to new audiences (e.g, widening to 5% lookalikes) or new platforms.
- Leverage AI/Automation: Use Campaign Budget Optimization (CBO) or Advantage + campaigns to let the algorithm distribute funds to top performers.
Scaling Framework
To manage any risk while growing your campaigns, follow this framework to understand how your budget should be allocated.
- 70% should be allocated to proven performers. Start scaling these campaigns gradually.
- 20% should be allocated to promising tests. This will test new alternative for your next winning campaign.
- 10% should be allocated to experimental. High-risk, high-reward new platforms or audiences.
Key Indicators
| Metric | Signs to Optimize | Signs to Scale |
| ROAS | Below break-even | Consistent and profitable |
| CPA/CPC | Trending upwards | stable/low |
| Frequency | > 2.5 (Ad Fatigue) | < 2.0 (Room to grow) |
| Conversion | < 1.5% – 2% (Ecom) | > 2% and steady |
| Learning | In learning phase | Exited and stable |
Keep in mind, scaling is about control, not speed. Gradual increases will protect your budget while enabling expansion.