Sometimes entries are scheduled to run in the background, without anyone waiting to view them. This includes scheduled entries, entries that are run once and saved, and interactive entries that are saved or mailed. Interactive entries do not have run histories.
IBM Cognos 8 keeps history information each time an entry runs in the background. The run history for an entry includes information such as the request time, start time, completion time, and whether the report ran successfully.
You can look at a more detailed run history for the entry, which includes general, error, and warning messages related to the entry and any actions you can take. If there is email associated with the entry, the status of the email delivery is included.
Some types of entries display additional information in the detailed run history page:
For reports, a report output version 
is
kept each time a report is run according to a schedule. You can
view the report output version from the detailed run history.
For jobs, you can view a list of job steps and see a detailed run history for each one. You can also see the parts of the job that have not yet completed. If the entry is part of a parent entry, you can view the parent entry that initiated the run.
You can rerun failed entries from the detailed run history page. You can
view a list of related runs that are part of the rerun series and
see a detailed run history for each one. You can specify how many
run history occurrences to keep or for how long to keep them .
Start IBM Cognos Connection.
In the upper-right corner, click the my area button 
, and click My Activities and Schedules.
Click Schedules or Past Activities.
Next to the entry, click the arrow and then click View
run history 
.
If you want, select the Status of entries that you want to view.
A list of selected entries appears.
If you want to view the run history details, in the Actions column,
click the view run history details button 
next to the entry you want. Then, if you
want, from the Severity list, select the severity
of the entries.
Under Job Steps, the complete run history details is shown. If the job run history details level was set to Limited, no history details for the jobs steps are recorded.
If there is a report output version, in the Actions column,
click the view outputs button 
for the entry you want. Then, from the Versions list,
click the version you want. To delete a version, click Manage
versions click the check box for the version, and then
click Delete.
