Xandr is now part of Microsoft
To continue using Xandr products (applicable to Xandr Invest DSP, Xandr Monetize and Xandr Curate) you will need to sign in with a Microsoft Services Account. This will give you:
This process must be completed by June 16th, 2023 and will only take approximately 5-10 minutes to set up.
An important part of this process is ensuring you sign in to Microsoft with the same email associated to your user account(s). You can view the current email associated to your accounts on the Account Settings page.
For more information, see this documentation.