Acumatica提供了两种不同的编程接口，分别为Acumatica API和OData。

Acumatica API是Acumatica独有的API，其使用SOAP和XML格式进行通信。以下是使用Acumatica API从销售订单模块中获取数据的示例代码：

SalesOrder salesOrder = new SalesOrder();  
salesOrder.OrderNbr = new StringSearch();  
salesOrder.OrderNbr.Value = "SO00000001";  

SalesOrder salesOrderResult = context.salesorder.Get(salesOrder);

OData是一种开放标准，可与多个数据源（如Microsoft Dynamics 365、Salesforce等）进行通信。以下为使用OData从Acumatica获取所有销售订单的示例代码：

string url = "https://myacumaticasite.com/entity/Default/18.200.001/SalesOrder/";

HttpClient client = new HttpClient();
client.BaseAddress = new Uri(url);
client.DefaultRequestHeaders.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

HttpResponseMessage response = await client.GetAsync(url);

if (response.IsSuccessStatusCode)
{
    string data = await response.Content.ReadAsStringAsync();
    JObject resultObject = JObject.Parse(data);
    JArray results = (JArray)resultObject["value"];

    foreach (JObject result in results)
    {
        Console.WriteLine(result["OrderNbr"].ToString());
    }
}

Acumatica API和OData都有其优缺点，开发人员可以根据自己的需求来选择使用哪种接口。