SRM - SUS setup

Hello Experts,

I am in the process of setting up a SRM-SUS scenario.  I have replicated both purchasing companies and vendors.  I get successfull messages in interface monitoring tool SXMB_MONI, but my problem is that neither the company nor the vendor is anywhere to be found.  I have looked in the org/vendor structures, table BUT000, transaction BP.  They are nowhere.

Where can I expect to find them?  Have you ever had this problem?  Do you know of a solution?

Regards

Rene