What do release, live, impact, and expiration dates mean in a promo?

When creating a new promo, you can input four different dates that impact how your promo is consumed and understood in our system.

Release Date:
This is when your album will be available to the public. This information appears in your invitation and on the promo page itself.

Live Date:
This is the date you want your promo to be available to the media (who you have granted access to). You do not have to make your music accessible as soon as you upload it if that is not your desired launch time.

Impact Date:
This is the date you want radio programmers to begin playing your release.

Expiration Date: 
This date is when you want the promo to expire. Any attempts to access the promo on or after this date will fail.