This article is to explains how to upload customers to an existing list. I also have an article describing how to upload a customer list from Shopify.
- Login to Google Ads
- Go to Tools And Settings in the top right corner and click on Audience Manager
- In your segements section, click on your customer list (not the editing icon)
- Click on the 3dot menu and select Edit list
- Check the box to Edit your list based on customer contact information
- Click on the radio button Add more customer
- Choose your file
- Accept the policies
- And save