Adobe Experience Platform Audience Portal allows you to import an audience using a CSV file.
During the custom upload process, specify the CSV attribute to use as the identity and the profile identity it maps to. This establishes a link between the audience data and the profile. If the CSV file contains an identity value not found in the profile, a new profile is created with that identity value.
For custom upload audiences, if “Incremental read” is enabled in a recurring journey, profiles are only retrieved on the first recurrence, as these audiences are fixed.
Detailed information on how to import audiences is available in Adobe Experience Platform Segmentation Service documentation.
Learn how to upload audiences in CSV format in video: