S/4HANA Cloud Public: OData v4 REST API and purchasing history.

Hi All,

Maybe somebody knows an answer.
I have CDS view, created in Fiori, with data source “I_PurchaseOrderHistoryAPI01” and its field “PurchasingHistoryDocument”.

I’m searching in documentation, how  to reach to this field via pure REST API. For example I can get PO with following request:
<my tenant>.s4hana.cloud.sap/sap/opu/odata4/sap/api_purchaseorder_2/srvd_a2x/sap/purchaseorder/0001/PurchaseOrder”
or I can get PO items and so on. It works well. PO API is described here, for instance: https://api.sap.com/api/CE_PURCHASEORDER_0001/resource/Purchase_Order

Could anybody tell me, please, what API item should I use to get “PurchasingHistoryDocument”?

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