Acumatica员工支付指令接口报错：现金折扣账户及子账户不能为空

调用Acumatica接口添加员工支付指令时，触发异常提示：

DiscTakenAcctID: 'Cash Discount Account' cannot be empty.; DiscTakenSubID: 'Cash Discount Sub.' cannot be empty.

已核对临时（adhoc）schema，确认上述两个字段并未在支付指令的schema定义中存在，且已对照文档更新JSON请求payload，但问题仍未解决。

请求使用的JSON payload如下：

{"EmployeeID": {"value": "APAUTEST13"},"EmployeeName": {"value": "Tester Tester Tester, Miss"},"EmployeeSettings": {"BranchID": {"value": "MAIN"},"Calendar": {"value": "AUCALENDAR"},"CurrencyID": {"value": "AUD"},"DepartmentID": {"value": "FINANCE"},"EmployeeClass": {"value": "EMPLYDFT"},"EmployeeRefNbr": {},"EnableCurrencyOverride": {"value": true},"EnableRateOverride": {"value": true},"LaborItem": {},"RegularHoursValidation": {"value": "Warning Only"},"ReportsTo": null,"RouteEmails": {"value": true},"Salesperson": {},"TimeCardIsRequired": {"value": false},"custom": {}},"EmploymentHistory": [],"ExpenseAllocationSettings": {"AllocationMethod": {"value": "No Allocation"},"custom": {}},"FinancialSettings": {"APAccount": {"value": "63000"},"APSubaccount": {"value": "63000"},"CashAccount": {"value": "10100"},"ExpenseAccount": {"value": "63000"},"ExpenseSubaccount": {"value": "0"},"PaymentMethod": {"value": "AUANZDC"},"PrepaymentAccount": {"value": "63000"},"PrepaymentSubaccount": {"value": "63000"},"SalesAccount": {"value": "10"},"SalesSubaccount": {"value": "0"},"TaxZone": {"value": null},"Terms": {"value": "30THMONTH"},"PaymentInstructions": [{"PaymentInstructionsID": {"value": 1},"Description": {"value": "Account Number"},"PaymentMethod": {"value": "AUANZDC"},"Value": {"value": "985324978"}},{"PaymentInstructionsID": {"value": 2},"Description": {"value": "Title of Account"},"PaymentMethod": {"value": "AUANZDC"},"Value": {"value": "TestMiss"}},{"PaymentInstructionsID": {"value": 3},"Description": {"value": "BSB Number"},"PaymentMethod": {"value": "AUANZDC"},"Value": {"value": "048490"}}],"custom": {}},"ContactInfo": {"Address": {"Country": {"value": "AU"}},"DateOfBirth": {"value": "1982-12-29T00:00:00+02:00"},"Email": {"value": "Tester.Test@myobap.com"},"Fax": {},"FaxType": {"value": "Home Fax"},"FirstName": {"value": "Tester"},"Gender": {"value": "Female"},"LastName": {"value": "Tester"},"MaritalStatus": {},"MiddleName": {"value": "Tester"},"Phone1": {},"Phone1Type": {"value": "Home"},"Phone2": {"value": "+ (68) 2 9804 8680"},"Phone2Type": {"value": "Cell"},"Phone3": {},"Phone3Type": {"value": "Business 1"},"SpousePartnerName": {},"Title": {"value": "Miss"},"Web": {}},"Status": {"value": "Active"}}

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内容的提问来源于stack exchange，提问作者techie_kuldeep