sproxy in HCI

Hi All,

We are planning to integrate HCI as the middleware soon.

As HCI does not have in built ESR and handles web services directly via WSDL,how to use SPROXY/ESR in this case.

Note: Currently, ESR is installed on SAP NW CE and no PI system is present.

After HCI, will the existing ESR become irrelevant?

Thanks

Sahil