About Customer File audiences

A Customer File Audience is a custom audience created by an uploaded list of leads or customers, where TikTok matches the provided IDs with users on the app. Only opted-in people can be reached with a TikTok campaign.

Benefits

You can use Customer File audiences to:

• Promote products or services to your existing list of leads or customers.

• Optimize ad spending by excluding recent conversions.

• Create a lookalike audience for prospecting campaigns to find new customers.

Key concepts

Once TikTok matches the provided IDs from the customer file to create an audience, the Audience Manager page in TikTok Ads Manager displays the size of total matched users. You can use the Audience Size Estimator to get a better understanding of the reach of a campaign using a custom audience.

Customer File Specifications

Your Customer File must be a .csv or .txt file to upload to TikTok Ads Manager. The file must also contain customer or lead:

• Email

• Phone number

• Mobile Advertiser ID (MAID)

Learn more about specifications for a customer file including accepted formats or download the customer file template.

Note: After your custom audience is created, your uploaded file is deleted.

Resources

• Learn how to create a Custom Audience with a customer file.

• Get an overview of the Audience Size Estimation tool.

• Learn how to create a Lookalike Audience.