IDoc (Outbound & Inbound) PO to ECC (2 clients)

Hi

As part of testing

I need to send outbound idocs from 2 separate clients in ECC to PO

Also I need to send inbound idocs to 2 separate clients of ECC from PO

With one client everything is working fine.

What extra steps need to be done for 2 clients, should we add entry in inboundRA ? Multirepository ?

Thanks in advance