Microsoft adCenter will undergo maintenance on Sunday, January 25. During the maintenance, you will be able to access the adCenter UI and API, and ads will continue to serve as scheduled. However, you will not be able to make campaign changes for a short period of time.

For up to four hours, during the period from 6:00 A.M. to 8:00 P.M. January 25, the adCenter UI and API, as well as adCenter DesktopBeta, will be placed in read-only mode, and no campaign updates will be accepted.