Why does my CSV upload for audience creation show rows skipped?

Rows are skipped during a CSV upload when the data does not match the requirements of the column you chose. If you map a column to HWID, the system checks for specific patterns and records.

Incorrect HWID format 

HWIDs must be standard UUID v4 strings. These strings consist of 32 hexadecimal characters divided into five groups by hyphens. A sample format is 1a2b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d. The parser rejects rows that use continuous strings without hyphens or other non-standard formats.

Mismatched identifier type 

This error occurs if you upload one type of ID but label it as another. For example, if you upload a list of User IDs but select HWID in the mapping dropdown, the system skips those rows. Check that the mapping selection matches the data in your file.

Missing subscribers 

The system skips identifiers that do not belong to any registered subscriber in your application. An ID must already exist in your database to be added to an audience.

To fix these issues, check your file for hyphens in HWID strings. If you are using User IDs, restart the upload and select User ID from the mapping menu. You should also confirm that the users in your list have already signed up or registered in your app.