Customize FYI notification in BPM for expense report submission

Summary:

When expense report having expense line-item date more than 30 days from system date then system should send FYI to user indicating that

user entering expense item is more than 30 days old.

We have enabled the FYI and user is getting the FYI but nowhere he sees reason for FYI. Can we add text/comments to FYI Notification that "REASON : Expense line item date is more than 30 days"

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