FIDCC1 Idoc seperation based on company code

Hi,

My problem is as follows.

I have 3 company codes all producing Idocs with Same message type FIDCC1 and the basic type.

My requirement is while Processing Idocs through BD87,

it should be possible to know before processing which idocs belong to Company code 1, Company code 2, Company Code 3 based on the BUKRS field in the Idoc without going in every idoc and checking the company code and then processing it.