> Quick answer: Upload your product feed to Google Merchant Center. Link Merchant Center to Google Ads. Create a Shopping, Performance Max, or Demand Gen campaign. Google auto-builds ads from your catalog data automatically.
Google builds ads directly from your product catalog. Feed it clean data and campaigns generate themselves. Here's the exact sequence.
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How Google Creates Ads from Your Product Catalog
Google pulls product images, titles, descriptions, and prices from your feed, then assembles and serves ads across Search, Shopping, Display, and YouTube surfaces.
What data Google uses from your feed
Your product feed is the source of truth. Google reads the title, description, image URL, price, availability, and product ID from each item. Per Google's Ads documentation, product data must meet the Product data specification before any ads can serve. Keep your attributes clean and complete from the start.
Which ad types support automatic generation
Three campaign types pull directly from your catalog:
- Shopping campaigns — product ads generated automatically, no creative work required
- Performance Max for retail — multi-format, multi-channel asset generation tied to your feed
- Demand Gen — carousel-format product ads served dynamically from your catalog
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Step 1. Set Up Google Merchant Center
A Merchant Center account is the foundation. Everything else depends on it.
Create your account
Go to merchants.google.com and sign in with your Google account. Enter your business name, country, and time zone. Enable "Shopping ads" as a marketing method. Without that setting, your ads won't serve.
Verify your website
Add your website URL and verify ownership. Google offers four methods. HTML tag, Google Analytics, Google Tag Manager, or domain name provider. Complete verification before uploading any products.
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Step 2. Upload Your Product Feed
Feed format options (CSV, XML, API)
Per Google's developer documentation, you can upload product data as CSV, TSV, XLS, or XLSX files. You can also use the Content API for Shopping for automated, real-time updates. The API suits large or frequently changing catalogs best.
Required product attributes
Every product needs. ID, title, description, link, image_link, availability, price, brand, and condition. Missing required attributes cause disapprovals. Check your feed against Google's Product data specification before submission.
Initial data quality checks (72-hour window)
Newly uploaded products go through data quality checks. Per Google's documentation, these checks may take up to 72 hours to resolve. Products show as "pending" during this window. Plan your campaign launch around that delay.
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Step 3. Link Merchant Center to Google Ads
How to authorize the connection
In Google Merchant Center, go to Settings, then Linked accounts, then Google Ads. Enter your Google Ads customer ID. Google Ads will show a pending request. Approve it from your Google Ads account under Tools, then Linked accounts.
Selecting feeds and feed labels
Feed labels let you assign specific products to specific campaigns. Use them when you have multiple feeds or need to separate products by region. Per Google's feed management documentation, labels are applied at the feed level inside Merchant Center.
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Step 4. Create Your First Campaign
Shopping campaigns (auto-generated ads)
In Google Ads, click New Campaign. Choose Sales as your goal. Select Shopping as the campaign type. Choose your linked Merchant Center account. Google auto-creates product ads for every eligible item in your feed. No manual ad creation needed.
Performance Max for retail
Per Google's Performance Max for retail documentation, linking Merchant Center to a Performance Max campaign enables automatic asset generation across multiple formats and channels. Choose Sales as your goal, select your Merchant Center feed, and Google handles distribution.
Demand Gen with product feeds
Demand Gen campaigns serve catalog products in carousel format. Create a Demand Gen campaign and attach a product feed from your Merchant Center. Google dynamically selects products based on audience signals.
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Speed Up Ad Creation with Coinis
Google's auto-generated ads use your feed images as-is. That's a starting point, not a finish line. Direct publishing to Google Ads is on the Coinis roadmap. But you can build sharper creatives today and drop them straight into your campaigns.
Generate multiple ad variations from your catalog
Coinis Image Ads generates polished, on-brand ad creatives from your product URL. More visual variety than a raw feed image. Upload them to Google Ads and run them alongside your catalog ads.
Maintain brand consistency across product ads
Coinis Brand Profile learns your brand colors, fonts, and tone. Every ad it generates stays on-brand. Consistent creatives build recognition faster across any channel you run.
Batch-create image ads from product data
Running a large catalog? Image Ads generates multiple ad variants in one session. Test different visual angles for the same product and find what converts.
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Or let Coinis do it.
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Frequently Asked Questions
Do I need a Google Merchant Center account to create ads from a product catalog?
Yes. Google Merchant Center stores all your product feed data. Without an account and an approved feed, Shopping, Performance Max, and Demand Gen campaigns cannot generate ads from your catalog.
How long does it take for products to show in Google ads after uploading my feed?
Newly uploaded products go through data quality checks that can take up to 72 hours. Products show as 'pending' during this window. Plan your campaign launch to account for that delay.
What file formats does Google Merchant Center accept for product feeds?
Google Merchant Center accepts CSV, TSV, XLS, and XLSX files. You can also use the Content API for Shopping for automated, real-time product data submissions.
Can I use Coinis to create ads for Google campaigns?
Yes for creatives. Coinis Image Ads generates on-brand product ad images from a product URL. You export and upload those images to your Google Ads campaigns manually. Direct publishing to Google Ads is on the Coinis roadmap.