In order to enable the Sharethrough exchange for direct targeting within your DV360 seat, please follow the steps below. You will need admin access to the partner in order to complete this process.
1. Go to the Partner -> Settings page
2. Then click Basic Details, and scroll down to the Exchanges option.
3. Click in and check mark the exchange that is moving to a direct integration. You should see a tooltip like in the image below that will also explain how the automigration works by referencing our Help Center article.
4. Go into your line items and make sure Sharethrough is checked off under Inventory Source - Public Inventory.