To run a shopping remarketing campaign on Google Ads, follow these steps:

1. Set up a Google Merchant Center account: If you don’t already have a Google Merchant Center account, create one and add your product feed to it. This will allow Google to display your products in the search results and in your ads.
2. Create a remarketing list: Create a remarketing list in Google Ads that includes people who have viewed products on your website, added items to their cart, or completed a purchase.
3. Create a new Shopping campaign: In Google Ads, create a new Shopping campaign and select “Sales” as your campaign goal.
4. Set up your campaign settings: Choose your geographic targeting, language, budget, and bidding strategy. Make sure you select “Targeting” and choose your remarketing list.
5. Set up your ad group and ad: In your ad group, create an ad that showcases the products from your website that your target audience has shown interest in. You can choose to feature the same products or similar products in your ad.
6. Launch your campaign: Once you’ve set up your campaign, launch it and monitor its performance. Make sure to regularly check your data to make any necessary adjustments to your bid or targeting settings.

When running a shopping remarketing campaign, it’s important to create ads that are relevant to your target audience and showcase the products they have previously viewed or added to their cart. Use high-quality images and descriptions to make your ads stand out and encourage people to complete a purchase.