When logging in to your publisher account, you are automatically redirected to the New Publisher Dashboard (beta).
The New Publisher Dashboard (beta) offers numerous benefits, and we believe you will enjoy the new and improved experience. Additionally, user management is exclusively available in the new dashboard.
The New Publisher Dashboard (beta) will eventually replace the Legacy Dashboard. However, you can return to the Legacy Dashboard for the time being by opening the nine-dot menu and clicking Legacy Publisher Dashboard:
Click on the image for a larger version.
For more information, take a tour of the New Publisher Dashboard (beta) or read the Common Questions about the New Publisher Dashboard.