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Scaling eCommerce: When to Increase Ad Spend

Anirban Sen

Updated: 4 days ago


Key Takeaways:

  • Target ROAS: Aim for a 3:1 to 5:1 ratio (or higher) before increasing your ad budget.
  • Budget Growth Strategy: Gradually increase ad spend by 10-15% weekly to avoid disrupting performance.
  • Peak Seasons Matter: Plan budget increases ahead of high-sales periods like Q4.
  • Smart Allocation: Use the 70-20-10 rule: 70% for proven campaigns, 20% for scaling, and 10% for testing.
  • Track Metrics: Monitor real-time data like ROAS, conversion rates, and CPC to guide decisions.

Scaling ad spend requires careful planning, data-driven decisions, and regular testing. Start small, track results, and grow steadily to maximize your returns.


Key Metrics for Budget Decisions


Metrics You Need to Monitor

When scaling budgets, three key metrics should guide your decisions: Return on Ad Spend (ROAS), Customer Acquisition Cost (CAC), and Customer Lifetime Value (CLV). On average, businesses achieve a ROAS of about 287%, meaning they earn $2.87 for every $1 spent. If your ROAS falls below 100%, it indicates your campaign is losing money and needs adjustments before increasing the budget. For long-term success, your CLV must surpass your CAC, ensuring profitability over time. Together, these metrics highlight when your campaign is ready for budget growth.

"Return On Ad Spend is a useful metric to compare the profitability of different ads, ad campaigns, or ad platforms." - Klipfolio

Establishing Benchmarks

Use industry averages and your market position to set realistic performance benchmarks. For example, the average eCommerce conversion rate ranges between 2% and 4%. While the average ROAS sits at 287%, knowing your break-even point is critical. You can calculate it with this formula:Break-Even ROAS = 100% / (Gross Profit Margin%).

For instance, if your gross profit margin is 75%, your break-even ROAS would be 133%. A ROAS significantly above this threshold signals that your campaign is ready to scale.


Tools for Tracking and Analysis

Analytics tools are indispensable for tracking these metrics. Google Ads provides basic reporting, but third-party platforms often offer more advanced features. For example, in March 2023, a marketing agency reduced its monthly reporting time from 30 hours to just 5 hours by using Whatagraph.

When evaluating tools, prioritize features like:

  • Cross-channel data integration
  • Automated reporting
  • Customizable dashboards
  • Real-time performance tracking
"Whatagraph allows you to automate the whole reporting process so that your clients and stakeholders get monthly, weekly, or daily reports without your intervention." - Whatagraph
"A campaign generally needs a week to get going, but after that, you should cut the bits that aren't working." - The Online Advertising Guide

These tools and insights help pinpoint the right time to increase your budget, ensuring your strategy is both informed and effective.


When to Increase Your Budget


Recognizing Campaign Success

Certain performance indicators signal when it's time to boost your ad spend. Metrics like steady conversions and a high return on ad spend (ROAS) are key. For example, if your campaign consistently hits a ROAS of 400% (a 4:1 ratio) or better, along with conversion rates that match or exceed industry benchmarks, it may be ready for additional investment.

"Without tracking ROAS, you won't be able to keep track of how your campaigns are doing in terms of generating revenue." – AdEspresso

Nearly 40% of online sales happen during the last quarter of the year. Additionally, global cost-per-click rates saw a 55.3% jump between Q1 and Q2. These patterns highlight the importance of planning your budget increases ahead of peak shopping seasons to secure the best placements and pricing.


Example: Scaling with ROAS Data

A real-world example shows how data can guide budget increases. In March 2023, a retail company spent $10,000 on ads and generated $50,000 in revenue, achieving a 500% ROAS. Based on this success, they raised their budget by 20% for the following quarter, effectively expanding their reach while maintaining profitability.

"A good ROAS can vary from business to business and even campaign to campaign. Most businesses, however, aim for a 4:1 ratio overall." – Neil Patel, Co-Founder of NP Digital

How to Increase Your Budget


Slow vs. Fast Budget Growth

Scaling eCommerce success with Google Ads requires careful budget adjustments. Gradual increases of around 15% help maintain campaign stability, while sudden jumps can disrupt performance by triggering the learning phase. This often leads to fewer conversions and higher CPC. For example, in March 2023, a digital marketing agency maintained a steady 300% ROAS for a client by increasing their budget by 15% weekly. Over two months, this approach boosted conversions by 25% without compromising key metrics.

"The trick is to ramp/trim budgets in such a way that it doesn't throw the campaign back into learning mode."– Scott Ostermiller, PPC Consultant

Budget Distribution Methods

Once your budget growth pace is set, it's crucial to allocate funds effectively. A popular method is the 70-20-10 rule:

Budget Category

Allocation

Purpose

Proven Campaigns

70%

Focus on evergreen, high-performing ads

Expansion

20%

Grow successful campaigns further

Testing

10%

Try out new strategies and ideas

Research from SCUBE Marketing shows that campaigns can lose up to 32% of their market share due to underfunding. Keeping an eye on 'Search Lost IS (Budget)' can help you identify and address budget shortfalls.

"Predictive Budget Allocation enhances performance by 10% while saving over 5 hours per week."Smartly.io

Testing Budget Changes

After distributing your budget, test changes carefully to ensure they drive results. Start by increasing spend by 10-20%, and closely monitor metrics like ROAS, conversion rate, CPC, and quality score. For instance, an eCommerce brand in Q1 2023 tested a small budget increase alongside A/B testing for ad creatives. This led to an improved ROAS, climbing from 4x to 5.5x, and a 25% boost in conversion rates over three months.

"Regular testing and optimization of ad spend can lead to significant improvements in both ROAS and conversion rates."– Bhujal Patel, Marketing Expert, Improvado

Leverage automated bidding tools and performance tracking systems to monitor results in real time. This allows for quick adjustments based on actual performance data, ensuring your campaigns stay on track.


How To Scale Ecommerce Brands With Google Ads


Managing Risks During Growth

Carefully increasing your budget is only half the battle - managing risks that come with it is just as important to keep growth on track.


Performance Monitoring Systems

When scaling ad spend, having strong monitoring systems in place is a must. For example, Splunk's July 2023 case study revealed a 30% reduction in response times thanks to predictive analytics and real-time alerts. You should set up real-time tracking for key metrics like ROAS, CTR, and conversion rates to catch any issues before they escalate.

Monitoring Component

Purpose

Impact

Real-time Alerts

Catch performance drops

Prevent revenue loss

Predictive Analytics

Forecast trends

Optimize resource allocation

"Performance monitoring is essential for ensuring the health and optimizing the performance of cloud-hosted apps and services." - Stephen Watts, Growth Marketing at Splunk

Using Multiple Ad Types

Once your monitoring systems are in place, diversify your ad strategy to spread risk. A balanced mix of ad formats can lead to better results. BigCommerce data shows businesses using multiple ad types often outperform those that rely on just one. For example, in March 2023, a retail client of Adsmurai combined Google Shopping feeds with search ads, achieving a 25% higher click-through rate and a 15% boost in conversions.

Here’s a recommended budget breakdown:

  • Search ads (40%): Focus on reaching active buyers.
  • Display ads (30%): Build brand awareness.
  • Shopping ads (30%): Drive product sales.
"Diversifying your ad spend across multiple formats not only reduces risk but also enhances overall campaign performance." - Paula Moreno, Adsmurai

Keeping High Quality Scores

Maintaining high Quality Scores is another key factor for scaling profitably. Advertisers with scores between 8 and 10 often see 20% higher click-through rates and up to 50% lower CPC compared to scores of 5–7.

To keep your Quality Scores high, focus on these areas:

  • Ad Relevance: Match keywords closely with your ad copy.
  • Landing Page Experience: Use tools like Google PageSpeed Insights to ensure fast load times.
  • Expected CTR: Regularly test and tweak ad variations to improve performance.
"By increasing your Quality Score, you can have your ads show more often, increase your position, and decrease your CPC." - Google Ads Support

Automated tools can help track Quality Score changes across campaigns, enabling quick adjustments to maintain strong performance as your budget grows.


Conclusion


Summary Points

Scaling ad spend effectively relies on a data-driven strategy paired with consistent performance tracking. Key indicators for increasing budgets include maintaining a ROAS (Return on Ad Spend) of 3:1 to 5:1 and showing steady improvements in conversion rates. Research shows businesses using data-focused marketing are six times more likely to achieve year-over-year profitability.

A thoughtful budget allocation strategy ensures steady growth while reducing risks. To guide your efforts, focus on these key metrics:

Success Factor

Key Metric

Target Goal

ROAS

Revenue per ad dollar

3:1 to 5:1

Performance Tracking

Monitoring frequency

Daily/Real-time

These benchmarks provide a clear framework for scaling campaigns effectively. With these metrics in place, it's time to move into actionable steps to drive growth.


Action Plan

Start scaling your ad spend with proven strategies:

  1. Enhance performance tracking. Strengthen your monitoring systems to ensure you're capturing real-time data. For example, Renogy achieved a 4.5 ROAS with just a $172 increase in ad spend.
  2. Automate and centralize optimizations. Kellanova’s use of automated tools led to a 35% boost in campaign effectiveness and a 78% engagement rate with targeted audiences within three months.
    "Building and optimizing an ecommerce growth strategy on Google to get results like this is not easy. It's not rocket science either, though. If your execution is data-driven and your product is high quality, you can see results like this, too." - Chris Alarcon, PPC Strategist, Tuff
  3. Refine campaigns through regular audits and testing. Conduct frequent reviews of your Google Shopping feed and run A/B tests on ad creatives and audience segments. Allocate at least $1,000 monthly for testing and optimization.

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