试试这个:

{
"CreateBill": {"value": true},
"VendorRef": {"value": "FROM_API"},
"VendorID": {"value": "ARTISTICCARP"},
"Details": [
    {
        "InventoryID": {"value":"VND1807 4x6"},
        "ReceiptQty": {"value": 1},
        "POOrderNbr": {"value": "001131" },
        "POLineNbr": {"value": 1},
        "POOrderType": {"value": "Normal"}
       
    }]
}

您传入了错误的订单类型，这就是它找不到采购订单的原因.如果 CreateBill = true，您还需要一个 Vendor Ref.

You passed in a wrong order type that's why it cannot find the purchase order. And you also need a Vendor Ref if CreateBill = true.