This screen shows alerts that are calculated daily when the ACOS of a campaign exceeds a certain value or demonstrates a concerning trend. Once a dangerous trend is noticed, the system records an alert, which is then updated daily as the situation progresses.
You can use this screen to quickly filter and sort campaigns by those that are performing badly, and then either investigate using the Keywords & Targets screen filtered by that campaign to see what targets are causing the overall bad performance, or take other actions in Amazon Advertising to resolve the situation.