Full-Funnel Google + Meta Ads Strategy for E-commerce

If you’re running both Google Ads and Meta Ads for an e-commerce brand, it’s essential to align them across the funnel. The two platforms are not interchangeable, and treating them as if they are is where most budgets leak. Here’s a clear, structured breakdown of how to run them as one system — five stages mapped to the right campaign types, budgets and metrics.

Why Google and Meta play different funnel roles

The simplest way to think about it: Google captures demand that already exists, Meta creates demand that doesn’t.

When someone types “best trainers for standing all day” into Google, they have already decided they want a product — your job is to be there for that query. That is intent-led, and it naturally sits lower in the funnel. Meta works the other way round. Nobody opens Instagram intending to buy your trainers; a scroll-stopping video creates the want in the first place. That is interruption-led, and it naturally sits higher in the funnel.

A full-funnel strategy uses each platform where it is strongest and hands audiences between them. Meta introduces the product and warms cold traffic; Google catches the branded and category searches that Meta demand generates; both platforms then retarget and retain. Miss that alignment and you either pay Google to “create” demand it is poor at, or ask Meta to close sales it was never designed to finish.

The full-funnel map at a glance

Funnel Stage	Google Ads campaign type & setup	Meta Ads campaign type & setup	Primary metric	Suggested budget share
Top-of-funnel (cold)	Demand Gen on YouTube/Discover; broad-match Search on discovery-intent queries	Advantage+ Sales or broad prospecting; short benefit-led video, objective set to Sales	Reach, CTR, new-visitor rate	~35–45%
Mid-funnel (consideration)	Standard Shopping + Display remarketing to product-page viewers	Catalogue (Advantage+ Catalogue) ads retargeting add-to-cart and view-content audiences	Add-to-cart rate, ATC recovery	~15–20%
Bottom-of-funnel (checkout)	Performance Max with a strong product feed; brand Search	Advantage+ Catalogue with direct-response copy and social proof	ROAS, CPA	~20–25%
Post-purchase (retain)	Brand + accessory Search terms	Retargeting recent buyers with complementary products	Repeat-purchase rate, LTV	~10–15%
High-value acquisition	Premium-intent Search (e.g. “luxury”, “handmade”)	Advantage+ Sales seeded with high-LTV lookalikes	New high-AOV customers, LTV:CAC	~10–15%

The budget shares are a starting-point heuristic, not a target — treat them as a way to sanity-check that you aren’t overweight on any one stage. A scaling store that needs new customers will push more into top-of-funnel; a mature store with a strong repeat base can lean harder on bottom-of-funnel and retention. Rebalance based on where your blended CAC and contribution margin actually hold up.

1. Top-of-funnel: cold traffic acquisition

This is where Meta earns its keep. Run short, benefit-led video ads (15 seconds or less) to introduce the product and build interest, using the Sales objective so Meta’s model optimises toward buyers rather than cheap clicks. Advantage+ Sales campaigns handle audience discovery well here; feed them strong creative and let the system find the pockets of demand.

On Google, target discovery-intent keywords such as “best shoes for standing all day” with Search, and use Demand Gen across YouTube and Discover to mirror the visual, interest-building job Meta is doing. Then close the loop: retarget Meta video viewers (say, 25%+ view-through) with UGC-style carousel ads that layer in reviews and testimonials.

Tip: Use consistent UTM tracking so you can unify audience insight between platforms and see which cold creative actually drives downstream revenue, not just top-line clicks. For more on prospecting creative, see our guide to targeting top-of-funnel on Meta.

2. Mid-funnel: add-to-cart recovery

The middle of the funnel is a recovery job — people who showed intent but didn’t buy. On Google, use Display remarketing and Standard Shopping to re-engage visitors who viewed product pages. On Meta, catalogue ads (now under Advantage+ Catalogue) dynamically show the exact items a user browsed or abandoned, which is far more efficient than static reminders.

Sequence the creative rather than repeating one ad: a gentle reminder first, then a review or testimonial, then urgency (low-stock or a time-limited nudge). Dynamic creative lets you do this at scale with less manual lifting and typically holds ROAS better than a single evergreen ad.

Tip: Exclude anyone who has already purchased so you’re not paying to recover a cart that’s already converted.

3. Bottom-of-funnel: checkout optimisation

At the bottom, you’re closing warm demand. Google Performance Max with a well-structured product feed does the heavy lifting across Search, Shopping and YouTube, prioritising your best-performing products and highest-intent queries. Keep a dedicated brand Search campaign running alongside it so branded searches aren’t left to chance. If you’re weighing PMax against other formats, our breakdown of Performance Max vs Demand Gen is a useful companion.

On Meta, Advantage+ Catalogue ads with direct-response copy (“Complete your order”, “Still thinking it over?”) plus visible social proof do the equivalent job. The single biggest efficiency win here is audience hygiene.

Tip: Exclude recent buyers across both platforms. Cross-channel exclusions immediately cut wasted spend and stop you annoying customers who’ve just paid.

4. Post-purchase: upsell and retain

Post-purchase is the beginning of the next funnel, not the end of the journey. Within roughly seven days of purchase, use Meta retargeting to promote complementary or upgraded products while the brand is still fresh. On Google, bid on brand-plus-accessory terms (e.g. “[Brand] accessories”) to catch customers who come back to search directly.

Layer retention on top: loyalty offers, referral incentives and replenishment reminders for consumables. Because this audience already trusts you, it’s usually your cheapest revenue — measure it on repeat-purchase rate and lifetime value, not first-order ROAS.

5. High-value buyer acquisition

Not all customers are worth the same, so a slice of budget should go specifically toward finding more of your best ones. On Meta, seed Advantage+ Sales or lookalike audiences with your highest-LTV customers rather than all purchasers — the quality of the seed list drives the quality of the reach. On Google, target premium-intent modifiers like “luxury”, “handmade” or “eco-friendly” that self-select for higher-value buyers.

Tip: Point this traffic at high-AOV bundles or subscriptions rather than entry products, and judge it on LTV:CAC. Premium buyers deserve a premium offer.

How the two platforms hand off to each other

The whole premise is that Google and Meta feed one another, so the plumbing matters as much as the campaigns:

• UTMs and GA4: Tag every campaign consistently (source, medium, campaign, and a stage identifier) so GA4 becomes your neutral referee. Platform-reported conversions will always overlap; GA4 or a server-side/data-driven attribution model gives you one version of the truth.
• Feed audiences across: Push Meta video viewers and engagers into retargeting pools, and use Google’s remarketing audiences to catch the same visitors on Search and Display. Demand created on Meta often converts as a branded Google search — so keep brand Search funded to capture it.
• Shared exclusions: Suppress recent purchasers on both platforms at once. If you don’t, you’ll double-serve and double-count.

Measuring each stage properly

Judging every stage on ROAS is the most common full-funnel mistake — top-of-funnel will always look “unprofitable” on last-click and get cut, starving the rest of the funnel. Instead:

• Top-of-funnel: reach, CTR and new-visitor rate. You’re buying attention and new audiences, not immediate sales.
• Mid-funnel: add-to-cart rate and ATC-to-purchase recovery.
• Bottom-of-funnel: ROAS and CPA — this is where efficiency should be judged.
• Retention/high-value: repeat-purchase rate and LTV:CAC.

On double-counting: if Google and Meta both claim the same sale, your combined reported ROAS will overstate reality. Anchor decisions to blended metrics — total revenue divided by total ad spend — and use GA4 as the tiebreaker. We go deeper on this in why ROAS can be misleading.

FAQ

Should I start with Google or Meta for a new e-commerce store?

If you already have demand — people searching your category or brand — start with Google to capture it cheaply. If you’re launching a product nobody’s searching for yet, start with Meta to create the demand, then add Google to catch the branded searches it generates.

How should I split budget between Google and Meta?

There’s no fixed ratio; it depends on your margins, your existing demand and how much you need new customers versus repeat orders. Use the stage-based shares above as a sanity check, then let blended CAC and contribution margin move the money. Scaling stores skew to top-of-funnel; mature stores skew to retention and bottom-of-funnel.

Why do Google and Meta report more conversions than I actually got?

Both platforms count a sale if they touched the customer, so the same order can appear in both accounts. Always reconcile against GA4 or your store’s back-end and judge performance on blended figures rather than the sum of each platform’s self-reported numbers.

Do I really need all five stages from day one?

No. Most stores start with top-of-funnel prospecting and bottom-of-funnel retargeting, then add mid-funnel recovery, post-purchase and high-value acquisition as volume and data grow. Build the funnel out as your spend and audience sizes justify it.

What’s the current name for Meta’s old Advantage+ Shopping campaigns?

Meta renamed Advantage+ Shopping to Advantage+ Sales in 2025, reflecting that the format now covers lead gen and app installs as well as e-commerce. For e-commerce the setup and behaviour are effectively the same — only the label changed.