Monthly calendar reports cannot contain more than 4000 tasks.}To reduce the number of tasks, filter the report. On the Project ...

{Monthly calendar reports cannot contain more than 4000 tasks.}To reduce the number of tasks, filter the report.

On the Project tab, click Reports, and then double-click Custom. Under Reports, click the monthly report, and then click Edit. In the Monthly Calendar Report Definition dialog box, click a filter in the Filter box.