Ecommerce Advertising Strategy: Meta, Google, TikTok in One Framework

Your paid advertising strategy shouldn't be three separate channels. It should be one system. Most ecommerce brands treat Meta Ads, Google Ads, and TikTok Ads like disconnected silos. You run creative testing on Meta. You throw budget at Google Shopping. You experiment with TikTok when you have spare budget. Then you watch the account bleed as channels compete for the same customer, inflate each other's CAC, and leave money on the table. The brands scaling fastest aren't the ones running the most channels. They're the ones who've mapped a single customer journey across three platforms and allocated budget based on where that journey actually converts. Channel selection becomes a decision about positioning and audience, not a panic reaction to a flat month. In this post, I'll walk you through the framework we use to structure advertising across Meta, Google, and TikTok. You'll see how to assign each channel a role in your funnel, prevent audience overlap, and know exactly when to scale in one channel versus cutting spend in another.

Understanding Your Customer Across Channels

Before you allocate a single pound to any channel, you need to understand how your customer moves. Not theoretically — actually. Most brands skip this step. They assume that because TikTok and Meta both reach 25-year-olds, the same person will convert the same way on both. That person won't. The context changes everything. On Meta, your customer is scrolling during a moment of calm. They're at home. They've got time. Their attention is focused. Meta's algorithm will serve ads to people who've engaged with similar accounts and content. The frame is: "Discover something relevant." On Google, your customer is searching. They've already decided they want something. They're past awareness. They're researching whether your product solves their problem. The frame is: "Find a solution." On TikTok, your customer is being entertained. They're not in discovery mode and they're not in research mode. They're consuming content for content's sake. An ad that works here is one that's so entertaining the customer forgets they're being sold to until the last three seconds. The frame is: "This is funny, useful, or shocking." Same customer. Three completely different contexts. Three completely different creative approaches. The framework works because you're not trying to run the same campaign across channels. You're running three campaigns with different purposes, different audiences, and different expectations for when they should convert. You're using each channel where it's most efficient, then stacking the channels on top of each other to build a full-funnel system.

The Three-Layer Model

Think of your advertising strategy across three layers: awareness, consideration, and conversion. Layer 1: Awareness. Your goal is to introduce your brand to people who don't know you exist. This is where TikTok excels. TikTok's algorithm will distribute entertaining creative to people outside your usual audience. Conversion expectations are low here. Your goal is reach and video completion rate. You're building brand recognition for people who'll see your brand again later in a different context. Layer 2: Consideration. Your goal is to reach people who've seen your brand (or your category) and are thinking about purchasing. Meta is your strongest channel here. Meta's targeting — Lookalike audiences, Custom audiences, interest stacking — lets you find people who've already shown some intent. You can run retargeting campaigns to people who visited your site, engaged with your content, or watched your videos. You can also run prospecting to Lookalike audiences built from your customers. Conversion rates are meaningful here. Layer 3: Conversion. Your goal is to capture intent at the exact moment someone is ready to buy. Google is your most efficient channel here. Google Shopping Ads appear when someone is actively searching for what you sell. They're not being warmed up. They're ready. Your goal is to appear in front of them at the right time with the right product and price. You're hunting demand that already exists, not creating it. Here's the key: each layer operates independently. You're not competing with yourself. You're not running TikTok ads to people you're already converting on Google. You're running TikTok to people who've never heard of you. You're running Google to people who are ready to buy. Meta sits in the middle, doing the work of warming awareness traffic into consideration traffic.

Mapping Your Funnel

Before you allocate budget, map where your actual customers are in the funnel. Ask yourself: - What percentage of my customers are cold traffic who've never heard of my brand? - What percentage are warm traffic who've seen my brand and are researching? - What percentage are hot traffic actively searching for my product type? Your budget allocation follows this split. If you're selling a new product category (e.g., you're the first brand doing something), most of your traffic will be cold. You'll spend more on Meta and TikTok building awareness. Once awareness is built, you shift budget toward Google where people are searching for your category. If you're selling into an established category (e.g., you're a new skincare brand entering a crowded market), most of your traffic is already aware of the category. They just don't know you exist. You'll spend more on Meta prospecting to Lookalike audiences built from your competitor customers. Google gets a larger slice because there's active search demand already. If you're a mature brand (you've been scaling for 12 months+), you might run all three channels in balance. TikTok handles brand awareness for new audiences. Meta does retargeting and prospecting to warm audiences. Google captures the search demand you've built over time. There's no "correct" split. It depends on your product category, your brand maturity, and where your actual customers are. But the framework is the same: map the reality, then allocate budget to match it.

Channel-Specific Strategy

Meta Ads: Warm Audience + Prospecting

Your Meta strategy has two campaigns running in parallel. Campaign 1: Warm Audience Retargeting. This is audience built from people who've already interacted with your brand (website visitors, video viewers, engagement custom audiences). You're not trying to create desire here. They already have it. Your goal is to stay top-of-mind and move them toward purchase. Conversion rates are your primary metric here. Run this on a cost-cap campaign with strict cost controls. You know these people are warm. You're protecting the efficiency of this spend. Campaign 2: Prospecting via Lookalike Audiences. This is audience built from your customers. Meta finds people similar to your existing customers and serves your ads to them. This is higher risk than retargeting, but it's also your highest volume opportunity. You're not warm traffic. You're cold traffic that looks like hot traffic. Run this on an ABO campaign in testing phase. Let multiple creatives compete. You're identifying which creative directions work with this cold/warm hybrid audience. Once you find winners, graduate the winning creative sets into CBO for scaling. Both campaigns use the same creative strategy but different targeting. Retargeting should be slightly more direct (clear product benefits, urgency hooks). Prospecting should be more entertaining (social proof, founder story, problem-aware hooks). Same brand, two different approaches to reach.

Google Ads: Search Intent Capture

Your Google strategy has two campaigns: Shopping Ads and Search Ads. Shopping Ads. Set up a feed of your products. Let Google distribute your product images and prices to people searching for your product category or similar products. Bid on search terms that indicate high intent (brand name, product type, category modifiers). Your ROAS should be significantly higher here than on Meta because search intent is pre-existing. Use cost-per-acquisition targets to protect profitability. If your break-even ROAS is 2.5x, set your cost per acquisition target at a level that delivers 2.5–3x blended ROAS. Google's algorithm will find the cheapest conversions that hit your target. Search Ads. Run branded search (your brand name), category search (product type + modifiers like "best" or "affordable"), and competitor search (searching for competitor brands and high-intent terms). Branded search should be a defensive play — you want to capture anyone searching for your brand by name. Category and competitor search are offensive — you're pulling in cold traffic that's actively researching. Bid more aggressively on branded and category search. Bid conservatively on competitor search (you're interrupting someone else's journey — it takes more creative to convert).

TikTok Ads: Brand Awareness + Entertainment

Your TikTok strategy is built on one principle: if it doesn't feel like content, it doesn't work. Most brands fail on TikTok because they repurpose Meta creative and run it on TikTok. Meta creative is optimised for a customer who's already warm. TikTok creative needs to work on a customer who's cold and being entertained. TikTok creative should be: - Entertaining first, sales-focused second - Vertical video (9:16 or taller) - Authentic or humorous (not polished or corporate) - Optimised for sound-off viewing (use captions, visual hooks, strong first 3 seconds) - Ending with a soft CTA or brand callout (not a hard sell) Your goal on TikTok is video completion and click-through. Conversion will be low. That's expected. You're building awareness and introducing your brand to audiences who don't know you yet. These people will later see your retargeting ads on Meta or search for your product on Google. Run your budget on a testing phase. You're identifying which creative directions generate high completion rates and cheap clicks. Once you find patterns (certain hooks work, certain formats work, certain energy levels work), you brief your creative team to produce more in that direction and scale accordingly.

The Critical Integration: Audience Overlap

Here's where most brands fail: they don't manage audience overlap between channels. Imagine you're running Meta retargeting to website visitors and Google Shopping simultaneously. Some people will click your Google ad, visit your site, then see your Meta retargeting ad the same day. Your Google ad drove them to the site. Your Meta ad will claim the conversion. Now you're paying two channels for the same sale, your blended CAC looks bad, and you think both channels are underperforming when actually they're cannibalising each other. To prevent this: Use exclusions strategically. In Google Ads, exclude your website visitor audience from your prospecting campaigns. Let Google Shopping capture the immediate conversions. In Meta, your retargeting campaign gets all the website visitors. You're not competing for the same sale twice. Understand attribution windows. If someone sees a TikTok ad, clicks away (no conversion), then searches for your product on Google three days later and converts, which channel gets credit? Your attribution tool will give credit to Google (last-click attribution). But TikTok did the awareness work that made the search happen. Use a long attribution window (7–14 days) to understand the actual contribution of each channel. Don't optimise solely on last-click. Separate cold and warm audiences. Cold traffic (people who've never seen your brand) goes to TikTok and Google prospecting. Warm traffic (website visitors, customers, engaged audiences) goes to Meta retargeting. You're not bidding cold and warm audiences against each other.

When to Scale, When to Hold

Once you've structured your channels, the scaling rule is simple: Scale in the channel that's delivering the lowest CAC or highest ROAS at the target volume you need. If Google is delivering $50 CAC and Meta prospecting is delivering $60 CAC, scale Google until the CAC rises to match Meta (efficiency will equalise as you scale). If TikTok can deliver you 1,000 clicks per day at $0.40 per click and you need volume, scale TikTok. Cut spend in channels that are inflating CAC without offsetting value elsewhere in the funnel. If Meta retargeting ROAS drops below your break-even point and stays there, cut it. But if TikTok is delivering cheap awareness traffic that later converts on Meta and Google, don't cut it just because the TikTok numbers look bad in isolation. This is where a unified attribution tool (Polar Analytics, Arieel, or your Shopify analytics with proper UTM structure) becomes essential. You need to see the full journey, not just the last click.

Getting Started

Start with this sequence: 1. Map your funnel. Estimate what percentage of your customers are cold, warm, and hot traffic. 2. Launch Google Ads first. Shopping Ads and Search Ads capture existing demand. This is the highest-confidence channel. 3. Layer Meta Ads second. Start with retargeting to website visitors (warm audience). Once you've proven that works, add prospecting via Lookalike audiences. If you want to deepen your Meta strategy, read our guide on Facebook Ads Campaign Structure. 4. Add TikTok last. Only once you've proven you can convert customers on Google and Meta, add TikTok for awareness. You're building on a proven conversion base. This sequence prevents wasting budget on brand awareness before you've proven you can actually convert customers. Once all three are live, the work is ongoing: monitoring which audiences are delivering results, adjusting creative based on performance, and shifting budget toward the highest-efficiency channels. The best way to track this is with a unified attribution tool that shows you the real contribution of each channel. Our Growth Engine service helps brands set up this exact full-funnel orchestration. Your funnel isn't static. Product popularity shifts. Seasonal demand fluctuates. New channels emerge. Your allocation should move with it. The framework stays the same. The channels change. The principles don't.

Ready to Structure Your Strategy?

If you're running ads across multiple channels and not seeing the efficiency you'd expect, the issue often isn't the channels. It's the lack of a unified framework. Each channel is underperforming because they're competing instead of working together. Book your Growth Diagnostic Call to work through your specific funnel structure and see where you're losing efficiency. We'll map your cold, warm, and hot audiences, identify where budget should go, and show you exactly what's costing you the most in wasted overlap. This is a 30-minute call. No pitch. Just diagnostics.