Entry point for Automatic Matching(LETTRAUTO)

Hi,

We have a requirement,

Path: FInance> Matching>Automatic Matching

1.  i have created customer BP Invoice for "$1000"  & Posted having number of (AR00001)

2. I have created un-allocated payment of $1000 & Posted with document number (REC0120152001)

Again 

3.  i have created customer BP Invoice for "$500"  & Posted (AR00002)

4. I have created un-allocated payment of $500 & Posted with document number (REC0120152002)

If we go for Automatic Matching function, we need to enter company, site , account, BP & Criteria based on amount

If we click on "OK"  , i need to find out the above mentioned document numbers by the process or any Entry point.

I have tried with "BEFAUTMTC" Entry point, but am getting Null values

Please provide solution 

Thanks & Regards,

Venu Babu