You can monitor the resource usage for data object messages that are processed by the DOE. You can monitor this data on a daily, weekly, or monthly basis.
You have activated computation of application statistics.
More information: Activating Computation of Application Statistics for the DOE
...
1. Log on to the SAP NetWeaver AS and start transaction ST03.
2. Expand the Workload node.
3. Expand the DOE system name node.
4. Expand the required time duration.
5. Double-click the required day, week, or month based on the option you selected in the previous step.
6. Under Analysis Views, double-click Application Views.