You have configured SAP Gateway in a central hub scenario on the FES system named FES with connected BES systems S4A, S4E and S4N. In your FES system, the following system aliases are defined.
Your user is assigned to user roles ZS4ASIA and ZS4EUR in the FES system. You are executing the following URI request in the Gateway client of the FES system:
/sap/opu/odata/sap/ZMM_PUR_ PR_PROCESS_SRV;mo/<OData-request>
From which systems will the response data come?