1. In your Google Ads account, click the Tools icon .
2. Click the Shared library drop down in the section menu.
3. Click Audience manager.
4. Click Audience lists from the Page Menu on the left.
5. Click the plus button to create a new audience list.
6. Choose “Customer list”.
7. Choose whether to upload a plain text data file or a hashed data file.
   • If you choose to upload customer data in plain text, the private customer data in your file (Email, Phone, First Name, and Last Name) will be hashed on your computer using the SHA256 algorithm before sending it securely to Google's servers. Country and Zip data won’t be hashed.
   • If you choose to hash your data, make sure it meets the requirements described in format your customer data file.
8. Choose your new file.
9. If you agree, check the box “This data was collected and is being shared with Google in compliance with Google's Customer Match policies.”
10. Set a membership duration. The maximum duration is 540 days.
11. Click Upload and create list.
12. You can view the progress of uploading your data file under "Audiences Lists". This process may take up to 48 hours to complete.
13. Once your data has uploaded, you’ll see a file upload success page. You’ll see information about the number of rows that successfully uploaded and your match rate percentage.
14. You’ll also see the last five file operations and understand the upload statistics for those operations.

To successfully use your customer data file, it’s important to ensure that you format your customer data file correctly.

• Note: If you checked the box in Account Settings for “conversion-based customer lists”, you can use the customer lists generated for you under Audience Manager > Audience Segments.