CRM 7.0 Trex Index for BP Identity Number

Hi Gurus

I need to create a TREX index for BP Identity Number.

What are the steps required to make put this is place?

I have not been able to locate any valuable information on this from the Best Practice guides nor SAP Notes.

We have the TREX Server in place and the SM59 connection, everything else must still be configured.

Any assitance will be greatly received.

Panduranga