Actually, @Rob_St,As it has been pointed out by my colleague, for onboarded data you need to specify the Data Source ID in the file name. It would therefore be possible to filter the signals present in these onboarded files, for a specific Data Source.This feature is already on the roadmap as part o...

Hey Rob_St , I don't believe there is a direct relationship between signals and data sources.Signals represent the raw data: key value pairs which are free formed (e.g. gender=male). The same signal can be used in any trait rule, belonging to any data source.Therefore:Signals - free formed, don't be...

Hey timw30830574 !Device metadata is already available in Audience Manager: Device Targeting With Platform-level Keys  You can use automatic device signals such as  d_device_model == "iphone" when defining a trait rule.Cheers,Constantin