How to change UnitPrice via Dynamics GP API - microsoft-dynamics

Question

I would like to change UnitPrice when create an order via Dynamics GP API,
So I run next code:
// Create a sales order object
var salesOrder = new SalesOrder();
// Create a sales document type key for the sales order
var salesOrderType = new SalesDocumentTypeKey();
salesOrderType.Type = SalesDocumentType.Order;
// Populate the document type key of the sales order object
salesOrder.DocumentTypeKey = salesOrderType;
// Create a customer key
var customerKey = new CustomerKey();
customerKey.Id = customerSummary[0].Key.Id;
// Set the customer key property of the sales order object
salesOrder.CustomerKey = customerKey;
// Create a batch key
var batchKey = new BatchKey();
batchKey.Id = "01-INBOUND";
// Set the batch key property of the sales order object
salesOrder.BatchKey = batchKey;
// Create a sales order line to specify the ordered item
var salesOrderLine = new SalesOrderLine();
// Create an item key
var orderedItem = new ItemKey();
orderedItem.Id = "AA1111";
// Set the item key property of the sales order line object
salesOrderLine.ItemKey = orderedItem;
// Create a sales order quantity object
var orderedAmount = new Quantity();
orderedAmount.Value = 1;
// Set the quantity of the sales order line object
salesOrderLine.Quantity = orderedAmount;
// THIS DOESN'T WORK
salesOrderLine.UnitPrice = new MoneyAmount { Value = 1.11m, Currency = "USD" };
// Discount works ok
// salesOrderLine.Discount = new MoneyPercentChoice { Item = new MoneyAmount { Value = 1.25m } };
// Create an array of sales order lines
// Initialize the array with sales order line object
SalesOrderLine[] orders = { salesOrderLine };
// Add the sales order line array to the sales order
salesOrder.Lines = orders;
// Get the create policy for the sales order object
var salesOrderCreatePolicy = dynamicsGP.GetPolicyByOperation("CreateSalesOrder", context);
// Create the sales order
dynamicsGP.CreateSalesOrder(salesOrder, context, salesOrderCreatePolicy);
But line to change UnitPrice doesn't work.
salesOrderLine.UnitPrice = new MoneyAmount { Value = 1.11m, Currency = "USD" };
What I'm doing wrong? Appreciate any help.
Thank you!

Answer 1

Found solution:
In Dynamics GP Web Service Policy Configuration for Update Sales
Invoice Policy, you need to update the “Calculate Unit Price Behavior”
to “Do Not Calculate”.
Also, make Sure that you have selected the right Company and assigned
proper roles for the policy. The role should not be Default.
Source: https://www.cloudfronts.com/dynamics-gp-sales-invoice-unit-price-always-0/