Microsoft Ads Launch: ↓38% CPC and 3.2× ROAS vs Google
A professional services firm running expensive Google Ads had never allocated a dollar to Microsoft Bing — despite Bing holding 12% of search market share and a demographic that skews heavily toward corporate Windows users. We built the Microsoft Ads presence from scratch in 30 days.
↓38%
CPC vs Google
×3.2
ROAS on Bing
+65%
Incremental Reach
30 Days
Timeline
The Situation
100% Google. 12% of Search Ignored.
This professional services firm was running well-structured Google Ads campaigns — but every search dollar went to a single platform. Microsoft's Bing search engine, which captures roughly 12% of US search market share, had never received a single dollar of their budget.
For most consumer brands, this oversight is minor. For a firm targeting corporate decision-makers, it's significant: Bing is the default search engine on Microsoft Edge, which comes pre-installed on every Windows machine — and corporate environments are overwhelmingly Windows. Their target audience was actively searching on Bing with zero competition from this brand.
Before — Google Only
$0
Bing Spend
High
Google CPC
2.4×
Google ROAS
Google Only
Reach
After — Dual Search
↓38%
Bing CPC vs Google
3.2×
Bing ROAS
+65%
Incremental Reach
↓29%
Blended CPL
Root Causes
Five Missed Opportunities on Bing
The absence of Microsoft Ads wasn't just a missed channel — it was five distinct structural gaps affecting reach, cost, and targeting precision:
100% of search budget allocated to Google, ignoring Microsoft's 12% search share — for a professional services firm targeting corporate decision-makers, this share is often higher (Bing is heavily used on corporate Windows machines).
No awareness of LinkedIn profile targeting in Microsoft Ads — a unique capability unavailable in Google Ads that lets B2B advertisers target by job title, company, and industry within Bing search results.
Rising Google CPCs from competitive bidding in professional services — CPC had increased 34% over 18 months as more competitors entered search advertising.
Zero incremental reach beyond Google's user base — the same audiences being served Google ads were never reached via Bing, leaving intent-rich users unaddressed.
No understanding of Bing's user demographic — research shows Bing users skew older (35–65), higher income, and more likely to be in corporate/professional roles than Google's average user.
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The Approach
Five Steps. New Revenue Channel in 30 Days.
We moved efficiently — using the existing Google campaign structure as a starting point, then calibrating for Bing's unique intent patterns and leveraging the LinkedIn data layer no Google campaign can access.
1
Google Campaign Export & Adaptation
Exported all Google Search campaigns, keyword lists, negative keyword lists, and ad copy. Adapted to Microsoft Ads format: converted bidding to Bing's equivalent Smart Bidding, adjusted keyword match types for Bing's different intent distribution, and adapted ad extensions to Microsoft's format.
Full Google exportSmart Bidding adaptationMatch type calibration
2
LinkedIn Data Layer Integration
Enabled LinkedIn profile targeting within Microsoft Ads (a unique Bing-only capability). Layered job title + company size + seniority targeting on top of keyword targeting to ensure Bing ads reached decision-makers specifically, not just anyone searching the target keywords.
LinkedIn job title targetingCompany size filterDecision-maker reach
3
Bid Strategy Calibration for Bing Intent
Bing search intent patterns differ from Google: fewer informational queries, higher commercial intent ratio. Set initial bids at 70% of Google equivalents, then adjusted upward on high-performing terms over the first 14 days based on actual conversion data.
Built Microsoft Ads-specific negative keyword lists (different from Google's because Bing serves some queries Google doesn't). Added demographic exclusions based on first-week performance data. Excluded existing customer emails from prospect campaigns.
Daily bid reviews for first 14 days, moving to every-other-day for days 15–30. Weekly performance comparison against Google benchmarks. Final budget allocation: 70% Google / 30% Microsoft based on reach and ROAS balance.
Daily monitoring wk 1–270/30 final allocationWeekly Google benchmark
Results
Better ROAS Than Google. 38% Lower CPC. Non-Cannibalistic.
30 days after launch, Microsoft Ads was generating leads at 3.2× ROAS — outperforming Google's 2.4×. And critically, Google's performance held steady: the new channel didn't cannibalize existing revenue, it added to it.
Metric
Before
After
Change
CPC vs Google
Baseline Google
↓38% on Bing
↑ ↓38%
ROAS
2.4× Google
3.2× Bing
↑ +33%
Incremental reach
Google only
+65% new users
↑ New audience
Blended CPL
Google baseline
↓29% blended
↑ ↓29%
LinkedIn-targeted share
0%
34% of Bing spend
↑ Precision added
Setup time
—
30 days
↑ Fast to value
Monthly incremental leads
0 from Bing
+42 leads/month
↑ New volume
Google ROAS impact
2.4×
2.4× (unchanged)
↑ Non-cannibalistic
Core Insight
Microsoft Ads didn't cannibalize Google performance — both channels maintained their ROAS independently. The 65% incremental reach means Microsoft Ads reached users who never would have seen this brand's Google ads, at 38% lower cost per click.
Campaign Breakdown
Three Campaigns. Each with a Distinct Role.
The Microsoft Ads account was built with three distinct campaign types — each targeting a different audience and intent stage within the professional services buying journey:
Bing Search (Adapted from Google)
×3.2
ROAS
↓38% CPC vs GoogleCore keyword coverage
↑ Outperforming Google baseline
LinkedIn-Targeted Bing Search
Highest
Lead Quality
Decision-makers onlyJob title + Bing intent combo
↑ 34% of Bing spend allocated here
Bing Retargeting (UET Pixel)
×5.1
ROAS
Google visitors retargeted on BingCross-platform warm audience
↑ Best ROAS in account
Is Your Search Strategy Missing Microsoft Bing?
This case study is relevant if your account looks like any of the following:
You're allocating 100% of your search budget to Google and have never run Microsoft Bing Ads
You serve B2B or professional audiences that might skew toward corporate Windows users where Bing is default
Your Google Ads CPC has been rising 15–30% year-over-year due to increasing competition
You don't know that Microsoft Ads has a unique LinkedIn data integration unavailable in Google
Your Google ROAS is acceptable but you're looking for incremental volume at sustainable CPA
You've never explored whether adding a second search platform would reduce blended CPL
30 min · Free · We'll show you the gaps, no strings attached
Frequently Asked
Questions About This Case Study
Yes, particularly for B2B professional services targeting corporate employees. Bing holds approximately 12% of US search market share, with a demographic that skews toward corporate Windows machine users (Bing is the default browser on Microsoft Edge, which is pre-installed on all Windows machines). For professional services, accounting, legal, consulting, and B2B software, the Bing audience often outperforms Google's in qualification rate. In this case, the Microsoft Ads ROAS of 3.2× outperformed Google's 2.4× for the same campaign type.
Bing users in professional services contexts tend to show slightly higher commercial intent ratios and lower informational query ratios than Google. This is partly demographic (older, more senior users) and partly behavioral (Bing is more commonly used for work-related searches on corporate machines). CPC on Bing for professional services keywords is typically 25–45% lower than Google due to less advertiser competition, while conversion rates are comparable or slightly higher for high-intent transactional queries.
Yes — this is one of Microsoft Ads' most powerful unique features unavailable in Google Ads. Through the LinkedIn data integration, Bing advertisers can overlay their search campaigns with LinkedIn profile data: job title, company name, industry, and company size. This means your professional services ads appear specifically to users with relevant job titles when they search Bing — combining search intent with professional profile precision. In this case, 34% of Microsoft Ads spend was allocated to LinkedIn-targeted campaigns, which generated the highest-quality leads in the account.
Microsoft Ads offers a Google Import tool that can copy campaigns, ad groups, keywords, and ad copy directly from Google Ads. The process: (1) export your Google Ads structure via the import tool, (2) review imported campaigns for Bing-specific adjustments (match types, bid amounts), (3) calibrate bids to approximately 60–75% of Google equivalents (lower competition means lower required bids), (4) build Bing-specific negative keyword lists (Bing serves some queries Google doesn't), (5) set up the UET (Universal Event Tracking) pixel for conversion tracking and retargeting. Allow 2–4 weeks of calibration before expecting stable performance.
Microsoft Ads consistently performs well for: B2B software and SaaS (corporate Windows user demographic), professional services (legal, accounting, consulting), financial services (insurance, wealth management), healthcare professional services, home improvement and contractor services, and B2G (business-to-government) advertising. Industries that tend to underperform on Bing compared to Google include: youth fashion, gaming, social/lifestyle consumer products, and categories with a demographic skewing under-35.
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