Sending PR from Ariba to S/4HANA

[Salma_Abdelhalim]

We are implementing a scenario where the PR is created in Ariba and sent to S/4HANA for the rest of the flow to be done in S/4HANA however Ariba tenant has two ERP systems registered and we need to specify one of them. The creation of PR does not include a field to specify which ERP system. Are there any parameters that need to be configured in Ariba for this specific purpose?

[Prem_Tracz]

usually one realm = one ERP. that is the whole point of FPC design where you have multiple child realms (each connected to one ERP)

If you have two ERPs as your backend obviously you need a middleware that will be your router.

So the middleware will receive the PO and send it to the right ERP.

Usually routing is done based on accounting entity, for example Company Code number.