SAP ICMR - Intra Company Matching

We need to perform Intra Company matching to remove records mainly reversed transactions. In ICMR we created a data source with leading and partner unit field as "Company". This allowed us to use a second data source which we used for Intra company matching for reversed documents. But there is a problem. These reversed documents still appear in our other matching methods with proc status as "00" despite being matched in the Intra co match method.

SAP claims this is standard behaviour. Then How do we have 1 common method for INTRA and Inter company matching??