I manage over ₹1 Crore in Google Ads spend every year across e-commerce, real estate, education, and healthcare clients. That's not a flex — it's context. Because what I'm about to share isn't from a Google certification textbook. It's from accounts where a wrong bidding decision costs a client ₹50,000 in a weekend.
Let's talk about what actually works in 2026.
Why Most Marketers Get Bidding Wrong
The biggest mistake I see from junior marketers and course graduates is treating bidding strategies as a checklist item. They read that "Smart Bidding is better than manual CPC" and switch everything to Target CPA without understanding when Smart Bidding works and when it destroys campaigns.
Here's the rule nobody teaches you: Smart Bidding needs data. Without sufficient conversions, it guesses. And its guesses are expensive.
The minimum threshold before switching to Target CPA: 30–50 conversions in the past 30 days, per campaign. Below that, you're feeding the algorithm noise, and it will optimise toward nothing or toward the wrong signal.
The 5 Bidding Strategies, Explained Honestly
1. Manual CPC — Still Relevant, But Only at the Start
Manual CPC gives you the most control. You decide the maximum you'll pay per click, and Google shows your ad accordingly.
When to use it:
- New campaigns with zero conversion history
- Campaigns with very low monthly budget (under ₹15,000/month)
- Highly competitive niches where you need to control costs precisely
The problem: It's reactive. You can't adjust bids in real time for device, location, time, audience, and dozens of other signals the way Smart Bidding does.
My approach: Start with Manual CPC or Enhanced CPC for the first 2–4 weeks to build conversion data. Then migrate.
2. Maximise Clicks — A Trap for Beginners
This strategy tells Google: "Get me as many clicks as possible within my budget." Sounds logical. It isn't.
The problem: Google optimises for clicks, not quality. You'll get clicks from people who have no intent to convert. Your CTR will look great. Your conversion rate will be terrible. I've seen campaigns burn ₹30,000 in traffic that generated zero leads because someone thought maximising clicks = maximising results.
When it's actually useful: Brand awareness campaigns where clicks to a content page or resource are the goal, and conversion tracking isn't set up. That's about it.
3. Target CPA (Cost Per Acquisition) — The Gold Standard When Set Up Right
Target CPA is where most mature campaigns should live. You tell Google the average cost you're willing to pay for a conversion, and the algorithm adjusts bids dynamically across millions of signals to hit that target.
What makes it work:
- Minimum 30–50 conversions in 30 days before switching
- A Target CPA set based on real data (your current CPA ± 20%), not aspirational numbers
- Clean conversion tracking — if you're tracking the wrong action, the algorithm optimises toward the wrong thing
The mistake I see constantly: Setting a Target CPA that's 50% below your historical CPA and expecting the algorithm to magically hit it. It won't. It will throttle your traffic to almost nothing trying to find the perfect conversion that doesn't exist at that price point.
My rule: Set Target CPA at your current actual CPA for the first 2 weeks. Let the algorithm stabilise. Then reduce gradually — 10–15% at a time, no more than once every 2 weeks.
4. Target ROAS — For E-commerce and High-Value Lead Gen
Target ROAS (Return on Ad Spend) tells Google: "For every ₹1 I spend, bring me ₹X in conversion value." It requires conversion values to be assigned — either literal revenue (for e-commerce) or proxy values (for lead generation).
When it works brilliantly:
- E-commerce with real transaction values tracked via Google Ads conversion
- High-ticket services where you've assigned accurate lead values
When it fails:
- Lead gen campaigns where all leads are assigned the same value (the algorithm can't differentiate quality)
- Campaigns with fewer than 50 conversions/month — same data problem as Target CPA
A real example from my accounts: A real estate client generating leads for properties ranging from ₹30 lakh to ₹2 crore. We assigned different values to different property inquiry types. tROAS immediately started prioritising leads from the premium segments. CPA went up 15%, but revenue per conversion went up 60%. That's a win.
5. Maximise Conversions — The Smart Default for Growing Campaigns
Maximise Conversions tells Google: "Spend my entire budget and get as many conversions as possible." No specific CPA target — just maximise volume.
When to use this:
- Transitioning from Manual CPC with 15–30 conversions/month — not enough for Target CPA yet, but more than zero
- Campaigns where volume matters more than efficiency (new product launches, market entry)
- Healthy budget campaigns where you genuinely want to spend everything
The catch: Without a Target CPA constraint, costs can spike unpredictably. I've seen campaigns hit ₹2,000 CPA on Maximise Conversions when their historical CPA was ₹400. Google found conversions, just very expensive ones.
The Migration Path I Use for New Campaigns
Here's the exact sequence I run on almost every new Google Ads campaign:
Week 1–4: Manual CPC or Enhanced CPC. Build conversion data. Target 2–3 conversions per week minimum.
Week 5–8: Switch to Maximise Conversions. Let it spend the full budget. Watch CPA — is it reasonable? Is it stable?
Week 9 onwards: If you have 30+ conversions in the past 30 days, switch to Target CPA. Set the target at your actual current CPA. Review every 2 weeks.
Month 3+: Fine-tune Target CPA gradually. Use Audience Bid Adjustments for high-converting segments. Add negative keywords aggressively.
The Thing Bidding Can't Fix
Here's what no bidding strategy can overcome: bad ad copy, a poor landing page, or targeting the wrong keywords.
I've seen marketers obsess over Smart Bidding settings while their landing page loads in 8 seconds on mobile. The algorithm can find the right people — but it can't make them convert on a terrible page.
Bidding is the engine. Copy, landing page, and keyword intent are the fuel. Don't mistake one for the other.
What to Do Right Now
If you're running Google Ads and haven't audited your bidding strategy against your conversion volume, do it today. Pull your last 30 days of data. Count your conversions per campaign. Ask yourself: does my bidding strategy match where this campaign actually is in its lifecycle?
If you want to learn how to manage campaigns like this on real client accounts — not on simulated demo dashboards — that's exactly what we teach at Digital Magician. Every student manages real eSahayak agency campaigns from Week 1.
Book a free counselling call →
Gaurav Malik is the founder of Digital Magician and eSahayak Digital, a Sonipat-based digital marketing agency managing ₹1 Crore+ in annual ad spend across Google, Meta, and YouTube.