Selling on Amazon, eBay, your site, and more? Multi-channel complexity creates Google Ads attribution chaos. Our AI audit untangles the mess.
These problems are costing you revenue every day. Our audit finds exactly where your budget is leaking.
Your Google Ads drive traffic to your site, but customers buy on Amazon for Prime. You pay for the click, Amazon gets the sale and customer data.
Different prices across channels confuse customers and Google. Your $50 product on site competes against your $45 Amazon listing in Shopping results.
Products sell out on one channel but ads keep running. Overselling creates fulfillment nightmares and customer service costs.
A customer sees your Google Ad, researches on Amazon, buys from eBay. Who gets credit? Most sellers can't answer this, leading to wrong optimization decisions.
Different channels have different feed requirements. Managing multiple feeds leads to errors, inconsistencies, and disapprovals.
How does your store compare? Source: Multi-channel seller analysis 2025
Average CPC • Lower due to cross-channel leakage ROAS vs all ecommerce
What you should run vs. what you should avoid
6 critical areas specific to Multi-Channel Sellers stores
Measuring sales lost to own marketplace listings
Identifying price inconsistencies hurting conversion
Understanding true Google Ads contribution
Ensuring real-time accuracy across channels
Identifying what should only be on site
Comparing profitability by sales channel
"We created site-exclusive bundles that aren't on Amazon. ROAS on those campaigns is 5.2x vs. 2.1x for products also on Amazon."
One-time payment. Results in 5 minutes. No subscription.
"Found $800/mo in wasted PMax spend" — S.M., Shopify Store
"Audit all my product stores" — T.K., D2C Brand
"Run monthly, ROAS up 40%" — R.S., Ecommerce
"Essential for my ecom clients" — M.L., Agency
Common questions about running Google Ads for Multi-Channel Sellers stores
Cross-channel cannibalization—where customers click your Google Ad but buy on Amazon—is endemic for multi-channel sellers. You can't eliminate it, but you can minimize it and account for it. Strategies: First, create site exclusives. Products or bundles available only on your site give customers a reason to buy direct. Site-exclusive campaigns should be your highest-performing. Second, offer site-specific benefits: extended warranty, loyalty points, better customer service, faster direct shipping if possible. Third, use negative keywords for marketplace terms: 'Amazon,' 'Prime,' 'eBay,' 'Walmart' to filter out marketplace-intent traffic. Fourth, implement cross-channel tracking: Amazon Attribution can show you when Google Ads clicks convert on Amazon, even if you don't get credit. Fifth, consider your Google Ads a brand-building exercise that lifts all channels—some cannibalization is the cost of omnipresence. Our audit measures your cannibalization rate and identifies mitigation strategies.
Deep-dive guides to optimize every aspect of your ads