how we will get data for all Business partners in odata service (MCF) instead of defining one by one in SU01?

In ERP_UTILITIES_UMC ---- ERP UTILITIES multichannel  service

When I am calling this URL .

URL:/sap/opu/odata/SAP/ERP_UTILITIES_UMC/Accounts

I am getting status code 200.But it is not showing any data in it.

So we  are maintain  Business partner  inSU01  user reference like below

BUS1006              Business Partner              103.

If we passing like below we are getting data for that particular Business partner only.

My Question is how we will data for  all Business partners instead of defining  one by one in SU01?