Uploading Users to a Segment
Once a segment is created, users can be uploaded to it using our APIs. Topsort support three actions:- Add: Append new users to the existing segment, without making changes to existing ones.
- Remove: Delete specific users from the segment.
- Replace: Overwrite the entire segment with a new user list
- File format is .txt
- No headers
- One Opaque User ID per row, without emails or personal information.
Use in Campaigns
Segments are used as targeting options in campaigns. The same Opaque User ID uploaded to the segments should be used on the auction request, to guarantee the auction engine can match it with the corresponding segment.










