"I have to advertise on TikTok, everyone does." That's often how people choose, and often how they lose their first budget. Each ad platform is built for a different buying behavior. Putting your product on the wrong channel means paying to show it to people who aren't in the middle of buying it.
The Google, Meta, TikTok and Pinterest rules quoted here were checked in their help pages on September 23 and 24, 2026. The budget examples use a product that sells for $31 and leaves you $18 of margin before ads, the same one as in our platform tutorials.
The deciding question: does your customer search for your product?
There are two ways to buy online.
People search. Your customer knows what they want, or has a specific problem: "adjustable laptop stand", "non-slip yoga mat". They type it into Google. That's existing demand, and Google is the channel that captures it.
People discover. Your customer didn't know your product existed. They see it in their feed, they stop, they want it. That's created demand, and Meta, TikTok or Pinterest are the channels that spark it.
That's the whole "Facebook Ads vs Google Ads" debate. On r/ecommerce, a seller of trending products that were going viral in the US asked whether to move from Meta to Google. First answer: "If people don't really search online for the product, then it won't make sense." Another advertiser added to "compare CPA and margin, not CPC": a click on Google and a click on TikTok aren't worth the same.
Before you pay: see where your competitors already advertise
Three free tools show whether stores like yours are running ads, and on which channel. None of them needs an ad account.
On Google: the search itself
Search Google for your product name, then for the problem it solves. If ads with a photo and a price show up, merchants are already paying for that search: the demand exists. If you find almost nothing, it's probably a discovery product. To see a specific competitor's Google ads, Google's Ads Transparency Center lets you search by advertiser name or website.
On Facebook and Instagram: Meta's Ad Library
Open the Ad Library, pick your country and All ads, then type a keyword for your product. The Active status: Active ads filter keeps only ads that are currently running. On each card, two lines matter:
- Started running on: a store that has been paying for the same ad for months has good reason to think it pays off. That's an inference, not data: Meta shows neither an advertiser's sales nor their spend.
- This ad has multiple versions: the advertiser is testing variations, a sign they're actively working the channel.
On TikTok: the Creative Center's Top Ads
TikTok's Top Ads Dashboard lists high-performing ads by country, industry and objective. Filter by your industry, sort by Reach or CTR, and focus on ads with the Conversions objective: they're after sales, like you. Two limits: TikTok notes that only ads authorized by their advertisers appear there, and the full list requires logging in.
What to take from it. If several stores in your niche have been paying on the same channel for months, that channel works for this kind of product: start there. If nobody's there, either nobody has tried or it doesn't work. Either way, it's not where your first budget will learn fastest.
The product-to-channel table
| Your product | Main channel | What it takes to succeed |
|---|---|---|
| Already searched for (name, category, specific problem) | Google Shopping, then Search | A clean product feed, a page that answers the search |
| Visual and desirable (fashion, beauty, decor, gifts) | Meta (Facebook and Instagram) | Several images or videos, refreshed regularly |
| Understood by seeing it work (gadget, skincare, transformation) | TikTok | Short, native videos shot on a phone |
| Part of a project or inspiration (decor, weddings, recipes) | Pinterest, as a second channel | Vertical visuals, a connected catalog |
| Passion niche (gaming, fishing, model making) | Creators and communities, then Meta | Partnerships and credible content |
| Customers who already visited your store | Retargeting and email | An installed pixel, an email list |
The same product can work on several channels. This table gives you a first choice, not a truth: your numbers will decide.
Each channel's rules: minimum budget, learning, extras to turn off
All four platforms push you toward maximum automation. Our line is the same everywhere: let the algorithm handle targeting, it's what it does best, but turn down the extras it adds to your ads and placements. They spend your budget on variations and placements you don't control, before you even know what sells.
| Channel | Minimum budget | Learning threshold | Turn off at first |
|---|---|---|---|
| Google Shopping | None stated | 15 conversions in 30 days (Target ROAS) | Performance Max, auto-applied recommendations |
| Meta | Varies by country and currency | About 50 results in 7 days | Advantage+ enhancements, Audience Network |
| TikTok | More than $20 a day per ad group | About 25 results or 7 days | Smart+, off-TikTok placements, Automate Creative |
| None found in its help | 50 conversions a week (Performance+) | AI backgrounds, auto creative optimizations |
Google Shopping. Your products show up with a photo and price when someone searches. You need a Merchant Center account linked to your store (Shopify's Google & YouTube app handles it), and your approved products can already appear for free in free listings. On the paid side, Maximize clicks bidding needs no conversions to start, and the daily budget is an average: Google can spend up to twice that amount on a given day, but never more than 30.4 times it over the month. Start with a standard Shopping campaign rather than Performance Max, which also runs on YouTube, Display and Gmail. On r/shopify, one of the forum's most active commenters puts it this way: "straight Google Shopping. No Pmax is the key." Google "will do everything they can" to get you into PMax: "don't bite." The step by step is in the Google Shopping and Performance Max tutorial.
Meta. You show your product to people who weren't looking for it. You need creatives that stop the scroll, refreshed often, and a pixel that reports purchases. Meta sets a minimum budget that depends on the country, the currency and the optimization you choose: Ads Manager warns you if you're below it. With the Sales objective, let it handle the audience, the budget and the placements, except Audience Network, its partner apps outside Facebook and Instagram. Also turn off the Advantage+ creative enhancements: rewritten text, touch-ups, added music. The step by step is in your first Meta Ads campaign.
TikTok. Same logic as Meta, in vertical video, with more natural codes: a video that looks like an ad performs poorly. The minimum budget is lower than you often read: more than $20 a day per ad group. The $50 a day minimum only applies if you also set a budget at the campaign level, and TikTok advises leaving it empty at first. Stick with a manual campaign rather than Smart+, keep TikTok as the only placement and leave Automate Creative off. If you already post videos that work organically, a commenter on r/shopify suggests starting from those: "when you find content that pulls engagement, that's what you boost with TikTok ads." The step by step is in the TikTok Ads tutorial.
Pinterest. People go there to plan a project. Shopping ads run from your catalog, with no required keywords or interests, but you can't choose the exact surfaces where they appear. Pinterest doesn't publish a minimum in its help center. For its Performance+ campaigns, though, it recommends a daily budget of at least 5 times your cost-per-result goal. It also says its Performance+ Sales campaigns perform best with 50+ conversions a week, and below that advises starting with the Consideration objective. For creative, Performance+ offers AI-generated backgrounds, image resizing and automatic conversion into other ad formats: three options to leave off. On r/shopify, an advertiser who uses it for jewelry and wedding products finds it cheaper per click than social platforms, but says to "treat it as assisted conversions not last-click (since people are there for inspo and research)."
Before spending the first dollar
Whatever the channel, three things must be ready:
- Your pixel installed and checked, to know which ads sold. Without it, you're flying blind, and the platform doesn't know who to show your ads to. See install your Meta and TikTok pixels on Shopify.
- Your minimum ROAS worked out, to know when a campaign makes you money. The break-even ROAS calculator gives it to you in a minute.
- A store that converts, because ads amplify what exists. If your store doesn't sell with free traffic, ads will just lose money faster. The previous chapter, starting with sell the problem, not the product, is there for that.
How much budget for your first test?
Start from your margin, not from the amount the platform suggests. In our example, a $31 product that leaves $18 of margin before ads, for a minimum ROAS of 1.72:
| Channel | First test | Where the number comes from |
|---|---|---|
| Google Shopping | $5 a day, $152 a month at most | Clicks capped at $0.30: $18 ÷ 60 visits per sale (a starting assumption) |
| Meta | About $20 to $30 a day for 7 days | 2 to 3 times $18 per ad tested, with 4 ads |
| TikTok | $20 a day minimum, about $140 a week | The minimum for one ad group with no campaign budget |
| $90 a day per its recommendation | 5 times an $18 cost-per-result goal |
Our take: Google Shopping allows the cheapest test when your product is searched for, TikTok has a $20 a day floor, and Pinterest's own recommendation makes it more of a second channel. Each calculation is detailed in the platform's tutorial.
On r/ecommerce, a brand with $1,000 a month asked how to split it between Google and Meta. The answer: "You don't have enough budget to spend on two ad platforms." Pick one and go all in. The same advertiser would put everything into Google Shopping, unless the brand could "make consistent high quality ad creative for Meta." The context backs the caution: after several months on Meta, that brand was at a 0.94 ROAS against a 2.4 break-even.
Why start with one channel
Every platform learns from the results it observes, and each has its threshold: about 50 results a week on Meta, 25 results or 7 days on TikTok, 50 conversions a week for Pinterest's Performance+ Sales, 15 conversions in 30 days for Google's Target ROAS. At $20 to $30 a day, a single channel already struggles to reach its own. Split across three, none of them learns, and you can't conclude anything.
On r/shopify, replying to a brand weighing four platforms, one advertiser wrote that "most people diversify too early." Another: "Don't spread yourself thin across four platforms when you could dominate two damn well."
When and how to add a second channel
When the first is profitable at a stable budget. Scale its budget in steps first: TikTok advises 30% at most outside the learning phase, Pinterest 20 to 30%. The method is in scale your ads without breaking everything. The second channel comes when the first stops growing.
In what order. If your product is searched for, Google first, Meta second. An agency on r/ecommerce describes exactly that: "we start people in Google then get them onto meta secondly." If it's a discovery product, Meta or TikTok first: Google Shopping then captures the people who search for your product after seeing it. On r/shopify, one advertiser calls Google Shopping "your safest next move" after Meta, because it reaches people who are actively searching.
How to judge. Each platform takes credit for the sales it touched, and two channels can claim the same order. On r/ecommerce, a store spending $9,000 a month across Facebook and Google could no longer tell which one was profitable. The replies pointed out that branded search campaigns and Meta retargeting "are notorious for taking credit for sales" that would have happened anyway. The most repeated answer: calculate your blended ROAS, meaning your net sales in Shopify divided by your total ad spend, and compare it with your minimum ROAS. For the rest of the numbers, see read your ad campaign numbers.
Classic mistakes
- Choosing the trendy channel rather than the one where your customer buys.
- Launching without checking where competitors advertise, when the Ad Library and Top Ads are free.
- Accepting the automatic extras: Performance Max, Advantage+ creative enhancements, Smart+, Performance+ creative. They spend on variations and placements you don't control.
- Comparing channels on cost per click instead of cost per purchase against your margin.
- Launching without a pixel, then not knowing what worked.
- Judging in two days a campaign that hasn't had time to learn.
- Adding up the ROAS each platform reports instead of looking at blended ROAS in Shopify.
- Sending ads to the homepage instead of the product page that continues the message.
- Advertising a store that doesn't convert, hoping volume will make up for it.
No store yet? You can generate it with Scale Ova from your product, look at it and change it for free, and only pay when you publish it on Shopify.
FAQ
Facebook Ads or Google Ads: which is better for an online store?
TikTok Ads or Facebook Ads: which is better?
How much do Meta, Google or TikTok ads cost to start?
Google Shopping or Facebook Ads to start?
Which social media platform is best for selling products?
How can I see my competitors' ads?
Can I advertise on several channels from the start?
Are Pinterest Ads worth it for an online store?
Sources
- Ad Library, Meta, accessed September 24, 2026
- About the learning phase, Meta Business Help Center, accessed September 23, 2026
- Best practices for minimum budgets, Meta Business Help Center, accessed September 23, 2026
- Turn off Advantage+ creative enhancements in Meta Ads Manager and About Meta Audience Network, Meta Business Help Center, accessed September 23, 2026
- Top Ads Dashboard, TikTok Creative Center, accessed September 24, 2026
- About budgets for ads in TikTok Ads Manager and Best practices for budget, TikTok Ads Manager help, accessed September 23, 2026
- Learning Phase, TikTok Ads Manager help, accessed September 23, 2026
- About Smart+ Web Campaigns, About Automate Creative and About TikTok Ad Network (formerly TikTok Pangle), TikTok Ads Manager help, accessed September 23, 2026
- Ads Transparency Center, Google, accessed September 24, 2026
- Show your products for free on Google, Google Merchant Center Help, accessed September 23, 2026
- About average daily budgets, Google Ads Help, accessed September 23, 2026
- Set up Maximize clicks for Standard Shopping campaigns and About Target ROAS bidding, Google Ads Help, accessed September 23, 2026
- About Performance Max campaigns, Google Ads Help, accessed September 23, 2026
- Google & YouTube, Shopify App Store, accessed September 23, 2026
- Pinterest Performance+ and Shopping ads, Pinterest Business Help Center, accessed September 23, 2026
- r/ecommerce threads accessed September 23, 2026: Meta ads VS Google Ads, ADS - Google/Meta/Amazon, facebook versus google ads can't figure out which is actually profitable
- r/shopify threads accessed September 23, 2026: ad advice for a new shop, Best Advertising Platforms?
