Park Invoice Configuration

Hi experts,

I had posted twice for Park Invoice with same Invoice No, Invoice Amt, Currency, Posting Key but in diffrent date.

But there is no error prompt up to block this document.

For your information, one Parked Invoice will post to one document only.

I had tested few cases if post in same date and same Invoice No, it will prompt up error message to block me continue. But i post in different date with same Invoice No, nothing error will shown and the document will be save.

What i require here is to block continue entry if the Parked Invoice had been posted.

I think that i should change in configuration part, but i not clear where to change it.

Can you guide me where to change the configuration??

Thanks in advance.