We are planning system maintenance on Saturday, April 3, from 11 a.m. to 6 p.m. Pacific time. During this time you will not be able to make campaign updates via the API or the Web. You will still be able to make API reporting calls during this time. During the maintenance window, your ads will deliver as normal. Also, during the maintenance, any scheduled campaign updates may take an additional two to four hours to go into effect.