I need some clarification regarding some expense added to a report. How would I communicate the same to the submitter?

To have any sort of communication to the submitter, you can comment on the particular expense within the report.

To add a comment to the expense:

• Go to Approvals on the left sidebar.
• Click the Reports tab at the top.
• Click the report containing the expense to which you want to add comments.
• Click the Comment icon next to the report to which you want to add comments.
• Add your comment in the text box and click Send.