How to create a Custom Audience with a customer file
Customer File audience helps find users in the TikTok system that match with the IDs on your uploaded list. Your uploaded list can contain identifiers such as email address, phone, or Mobile Advertising IDs (MAIDs).
Before you begin
Prepare your Customer File by following these requirements and specifications:
File format is in CSV or TXT
File size is less than 1GB
Prepare the file as per the specifications for a Customer File. Make sure to have a header row describing the ID: Email address, phone, or MAID.
Create your file with one line per ID if it only contains a single type of ID.
View the example in about Customer File audiences, or download the template here: Customer File Template.
How to create a Custom Audience with a Customer File
To create a Custom Audience with a Customer File:
Go to TikTok Ads Manager.
Click the Tools tab.
Select Audience Manager.
Click the Create Audience button.
Choose Custom Audience.
Choose Customer File.
Upload your Customer File.
Name your audience.
Click Confirm.
Note: It can take 24-48 hours for the custom audience to generate after the upload.
Once uploaded, TikTok will look for users within the system that match the IDs on the uploaded file. Once matched, a Custom Audience will be generated and your uploaded file will be promptly deleted.
Learn more about Custom Audiences.