SAP PO inboundRA configuration

[AshishGoswami]

Dear SAP guys .

I have one simple question , e.g an ERP system wants to send IDOC to SAP PO and we have requirement to configure inboundRA connection , so there are 3 different clients on ERP so do we need to configure 3 cloned RA for that or one inboundRA ADAPTER will work ?  Please help to clarify 

Regards

Ashish Goswami

[anand_shankar10]

Only 1 inboundRA is enough from one S4 to 1 PO system.

[AshishGoswami]

But how it will read metadata from different clients, as there any property we need to set in adapter properties