The Meta Customer List Custom Audience is a powerful targeting tool that allows businesses to upload their customer data—such as email addresses, phone numbers, or other identifiers—into Ad Manager. Meta then matches this data with user profiles on Facebook, allowing advertisers to target those individuals with specific ads. This article guides you through the steps required to create a Customer List Custom Audience within Ad Manager and explains how to leverage it during campaign creation.

Key Features #

• Privacy and Compliance: Facebook ensures that the data is handled securely in line with privacy regulations such as GDPR. Make sure you only upload customer data you have permission to use for advertising.
• Audience Segmentation: Segment your audience by factors such as recent buyers, high-value customers, or inactive clients to run more personalized campaigns.

Benefits #

• Precise targeting of your existing customers.
• Improved conversion rates by showing ads to people already familiar with your brand.
• Re-engagement of past customers who may have forgotten about your business.

Getting Started #

To get started, go to the Ad Manager section within Marketing and click the Settings option. Navigate to the Audiences tab and click the + Create New Audience button. From the available options, select Custom Audience to proceed.

Alternatively, you can create a custom audience during the Meta campaign creation process. In the Budget and Audience step, navigate to the Retargeting tab within the Audience Controls section. From there, click the dropdown menu under “Create new” or select “Retargeting Audience,” where “Create a Custom Audience” is the first option.

Creating a Customer List Custom Audience involves two main steps:

Select a Source #

Clicking Create a Custom Audience opens a modal dialog to choose a source for the custom audience. Click Customer List to proceed.

Upload Data or Use Smart Lists #

In this step, you can choose between two methods to populate your Custom Audience:

• CSV Upload: Upload your customer data in CSV format, ensuring it adheres to Meta’s formatting guidelines. A sample file is provided for reference and can be downloaded by clicking the Download Sample button. You can also review the Meta Formatting Guidelines for more details.
• Use Smart List: If you prefer, select the Smart List option and choose one or multiple pre-created smart lists from the dropdown. Smart lists must be created beforehand from the contacts section of your account.

After selecting your method, enter an audience name and description for easy identification. Finally, click the Create Audience button to finalize the process.

Important Notes #

• If the uploaded CSV file is not formatted according to Meta’s guidelines, the upload fails with an error message.
• Only contacts from the selected smart lists are included in the custom audience.
• Before creating a custom audience, you must accept the Meta Customer List Custom Audience Terms of Service. If you have not accepted the terms, a message prompts you to do so before proceeding.

Frequently Asked Questions #

What is a Customer List Custom Audience? #

It is an audience built by uploading your own customer data (such as emails or phone numbers) so Meta can match it to Facebook profiles and let you target those people with ads.

What are the two ways to populate the audience? #

You can upload a CSV file of customer data formatted to Meta’s guidelines, or select one or more pre-created smart lists from the dropdown.

Where do smart lists come from? #

Smart lists must be created beforehand from the contacts section of your account. Only contacts from the selected smart lists are included in the audience.

Why did my CSV upload fail? #

Uploads fail when the CSV is not formatted according to Meta’s guidelines. Download the sample file and review the formatting guidelines to correct the structure.

Do I need to accept any terms before creating this audience? #

Yes. You must accept the Meta Customer List Custom Audience Terms of Service. If you have not, a message prompts you to accept before you can proceed.

What data am I allowed to upload? #

Only upload customer data you have permission to use for advertising. Facebook handles the data securely in line with privacy regulations such as GDPR.