System is allowing same date perdiem expense to be claimed multiple time under different exp report

The users should not submit the expense type of per diem multiple times for the same day. The system should limit the user to only submit one per diem Expense type per day.

for example: If we are create 20 dollars under per diem. Can system allow to create 20 dollars on the same day.

The start date and end date fields on this expense type, so the user cannot re-submit the expense type for the date range.

There was an enhancement request Enh 28169618 - restricting per diem for the same date range. Please provide the current status of the enhancement
request. Also, let us know the Doc ID where it has been mentioned.