One of the options shown by clicking on the 3 dots to the far right of an audience name says "Publish". In our use of that word, we mean "send to the DSP". What that does is send the mobile ids (MAIDs) unhashed to the DSP along with the meta data audience name, publishing schedule, and any extensions that you add.

First thing to understand is that all audiences created are saved in your Audience Library, and stay there. They will not disappear on you. You have the option to use that audience and create reports or publish at any time, provided the date range of the audience created is beyond our rolling 12 month look back period.

Once you select "Publish", whenever that is, the file is sent to the DSP and stays dormant at the DSP until you create a campaign, or tell the DSP or social network what to do with the file.