You can delete unposted journals that you no longer need. You cannot delete Approved or Posted journals, because that would result in unresolved data for the adjustment values that the journal had created.
Before you begin this procedure, in the Smart View Panel, ensure that you are connected to a Financial Management data source.
To delete journals:
In the Smart View Panel, right-click a Financial Management application, and then select Manage Journals.
The Manage Journals window is displayed.
Optional: Filter journals by status.
To filter by status, select one or more of the following options, and then click Apply Filters,
:
Working
Submitted
Rejected
You cannot delete Approved or Posted journals
Select a journal and click Delete, 
Alternatively, use the Shift or Ctrl keys to select multiple journals and click Delete,
.
Repeat step 2 to step 4 for each journal that you want to delete.