Checks for duplicate expenses

Hi experts, I have customer requirements when compliance checks resulted in findings. We have activated Business Configuration > Implementation Projects > Open Activity List > Fine-Tune > Set Up Compliance Checks > Set up checks for duplicate expenses.

1.- Traveler create a Expense Report, Add duplicate expenses and sent to approve.

2.- Approver receive notification to aprove, that's right. Our scenario requirements needs to show in the approver list a Policy violation for those Expense Reports with compliance checks, Is it posible?

I would like to attach information of SAP Help Library. Are any findings that prevent submission for duplicate expense and error message displayed?

Already reported an incident to SAP support, but waiting answer, any suggestion?

Thanks in advance!