On February 28, 2026, the Microsoft Invest (formerly Xandr) demand side platform officially ceased operation. Triton Digital will disable Xandr in TAP Programmatic after demand for it fully subsides. Once removed, Xandr will no longer appear in Third party processing instructions and will not be available for deal selection. For Microsoft’s announcement, see Empowering businesses for a future that is conversational, personal, and agentic.
If you don't see any Triton Digital inventory for your DSP campaigns in AppNexus, you probably haven't enabled third-party inventory. Enable it, then look for "Triton Digital" in your list of third-party sellers. Follow the instructions below:
1. Enable "Buy Third-Party Inventory" in the Basic Setup
Go to the campaign's basic setup.
Go to the Buying Strategies section.
Select the "Buy Third-Party Inventory" checkbox.
2. Go Get Your Triton Digital Inventory
Go to the campaign's Targeting section.
Go to the Inventory section and click Edit.
In the Inventory Targeting window, "3rd Party Inventory" should be checked.
Using the Search for sellers box, search for "Triton."
When Triton Digital is found in the results, click the checkmark to add it to the inventory list.
