Got it! Thanks for the help! I see that show up now in segment builder. On sample data upload have you ever seen it error on the _id field? I've concatenated an id field with the current timestamp, hashed it usiing SHA256 but it's still giving an error for:The following unmapped paths are required: ...

Innovative solution!For the audience creation, I'm currently using segment builder to hunt for the new customListGroup field under events in the UI but not seeing it yet. Will keep digging, thanks for the suggestion! 

They are in the system via analytics connector - I've marked a custom dimension evar prop as our customer identity.

Thanks for this advise! I can try that, but will need to figure out how to create an audience from the dataset. My high level goal is activate these externally defined audienes to Adobe Target. One thing I've tried is to use a segment definition schema with a non-person identifier marked as primary ...

Hi @DavidRoss91,I'm having this same problem. When I import an external audience created from a CSV file, it automatically creates an adhoc schema and dataset. When I view the schema, there is no way to enable it for profile. Other schemas that I create manually do have the option available, but the...