MedicationStatement FHIR resource on Epic & Cerner seems to be unsupported for R4 protocol

[mporwal011]

Hey team,

We built a smart app using fhirstorm and integrated with EPIC on fhir. We are able to successfully hit endpoints on Epic to fetch data for multiple resources.

But, for MedicationStatement on R4 we are getting 404. Below is the request we tried:
https://fhir.epic.com/interconnect-fhir-oauth/api/FHIR/R4/MedicationStatement?patient=enh2Q1c0oNRtWzXArnG4tKw3&format=json

Response:
The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.

I can hit the same request successfully for STU3 though.

Am I missing something here? It's highly unlikely that Epic does not support MedicationStatement resource for R4 protocol. Could this be the case because we are using their Sandbox environment?

Any leads on this will be much appreciated.

Thanks in advance,
Mayank Porwal