For Standard and Enterprise Edition events, the main Conference App Builder Admin on your team has been invited to Asana, our project management tool. If you do not have access to Asana or were not invited, please contact your Project Manager.
Core dates are also included directly in the Conference App Builder > Home > Project Settings.
Express and DIY Editions do not have a milestone timeline as the app is already in the app stores. Your content is published into these apps and you can use the Conference App Builder to publish updates as you have time.