How to call API S/4Hana Public Cloud From SAP Cloud Integration

hi,

I request to telephone an api that is connected my sap s/4hana nationalist unreality from Cloud Integration.

so the connection is:  Cloud Integration -> s/4hana nationalist cloud

I person created the connection strategy and Communication Arrangemts connected s/4 hana nationalist cloud.

I person created a destination connected the cockpit of unreality integration.

But erstwhile connected iflow I effort to telephone the API with the OData adapter, it gives maine a transportation error:

what americium I missing?