Google doesn't let you drop a URL and launch. The workflow runs through Merchant Center and a product feed. It takes a few steps to set up. After that, ads build themselves.
Why Product Data Matters for Google Ads
Shopping ads are nothing like traditional search ads. They show a product image, price, and title directly in search results. That visual format requires structured product data, not just a URL.
The difference between Shopping campaigns and traditional ads
Traditional search ads are text-only. You write headlines and descriptions. Shopping ads pull images and pricing from your feed automatically. Per Google's Ads Help Center, product ads are created automatically using information from your Merchant Center account.
Why Google uses product feeds instead of one-off URLs
Google doesn't crawl individual product pages on demand. It uses a centralized feed in Merchant Center. That feed keeps product info accurate across millions of queries at scale.
What information Google needs from each product
Required fields include image URL, product title, description, price, availability, and the product page link. Miss any of these and your product won't be eligible to serve.
Step 1: Set Up Google Merchant Center
Merchant Center is the foundation. No account, no Shopping ads.
Create a Merchant Center account and verify your website
Go to merchants.google.com and create your account. Verify domain ownership using an HTML tag, Google Analytics, or Google Tag Manager. Google also requires shipping and tax configuration before products can run as ads.
Choose your product data source (auto-sync, platform integration, file upload, or manual)
Per Google Merchant Center Help, you have four options. Automatic website crawl via structured data. Ecommerce platform integration with Shopify, WooCommerce, or BigCommerce. File upload or a Google Sheets template. Or manual product entry. Platform integrations sync automatically and work best at scale. Manual entry suits small catalogs.
Upload or sync your product catalog
Connect your data source and let the feed populate. Check the Diagnostics tab for errors. Every product needs complete, clean data before it's eligible to serve.
Step 2: Link Merchant Center to Google Ads
Merchant Center and Google Ads are separate tools. You have to connect them.
Connect your Merchant Center account to your Google Ads account
In Merchant Center, go to Settings, then Linked accounts, then Google Ads. Enter your Google Ads customer ID. Both accounts must approve the link before it activates.
Verify the link is active and syncing
Once approved, product data appears when you select a Merchant Center feed inside Google Ads. No products showing? Check feed approval status in Merchant Center Diagnostics first.
Step 3: Create a Shopping or Performance Max Campaign
With your feed loaded and accounts linked, you're ready to build.
Choose between Standard Shopping (more control) and Performance Max (broader reach, AI-optimized)
Standard Shopping gives you ad group control and product group subdivisions. You set bids per product group. Performance Max is broader. Per Google Ads Help Center documentation, Performance Max campaigns run across YouTube, Display, Search, Discover, Gmail, and Maps from a single campaign. Google AI handles bidding, budget allocation, and audience targeting automatically.
Select your campaign objective and Merchant Center feed
Choose "Sales" as your campaign goal. Connect your Merchant Center account during setup. Google builds product ads directly from your feed. No separate ad creative required.
Set budget, bidding, and target locations
Set a daily budget. For product-focused campaigns, Target ROAS or Maximize conversion value are common bidding strategies. Set geographic targeting to match your shipping zones.
Google automatically creates ads from your product data
Once the campaign goes live, Google pulls your images, titles, prices, and descriptions. Feed quality determines ad quality. Clean, complete data wins.
Amplify Results with High-Quality Creatives
Auto-generated ads from your feed are a floor, not a ceiling. Creative variety pushes performance higher.
Create diverse images per product for Performance Max
Per Google's Ads Help Center best practices for Performance Max, add at least 7 image assets per campaign. Include at least one 1200x1200 image. More assets give Google more ad combinations to test across placements and networks.
Use AI-generated product imagery to differentiate your ads
That's where Coinis Image Ads comes in. Paste your product URL. Coinis generates multiple on-brand images in minutes using cutting-edge AI models. Add those assets directly to your Performance Max campaign's asset group for stronger creative coverage. Brand Profile keeps every image consistent with your visual identity and brand voice.
Best practices for image specs and refresh cadence
Google recommends refreshing creative assets regularly, especially when promoting new products or seasonal offers. Use clean backgrounds and product-focused shots. Avoid heavy text overlays on Shopping images.
Or let Coinis do it.
From a product URL to a live Meta campaign. AI-generated creatives. On-brand copy. Direct publish to Facebook and Instagram. Real performance reporting. All in one platform.
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Frequently Asked Questions
Do I need a Merchant Center account to run Google Shopping ads?
Yes. Google Shopping and Performance Max campaigns both pull product data from a Merchant Center feed. Without a verified Merchant Center account linked to your Google Ads account, you can't run product-based campaigns.
What's the difference between Standard Shopping and Performance Max?
Standard Shopping gives you granular control over product groups and individual bids. Performance Max runs across YouTube, Display, Search, Discover, Gmail, and Maps from a single campaign. Google AI manages bidding and targeting automatically in Performance Max.
How many image assets should I add to a Performance Max campaign?
Per Google's Ads Help Center best practices, add at least 7 image assets per campaign. Include at least one 1200x1200 format image. More assets give Google more ad combinations to test across different placements and networks.
Can I use AI-generated images in Google Performance Max ads?
Yes. Performance Max accepts uploaded image assets in your campaign's asset group. You can generate on-brand product images with Coinis Image Ads and upload them directly to Performance Max to increase creative variety and coverage.