This illustration displays the Error Rate bar chart. The chart title is highlighted, five field filters are available, and the first four are check boxes: * All (This check box is selected.) * Request Policies * Response Policies * Service The last filter is the Policy Filter list, it's selected, and it shows a value of “No policy filter.” This bar chart displays the failed API requests. It plots time in the horizontal axis and the number of errors in the vertical axis. This chart has no data.