Salesforce JSON POST适用于标准对象而非自定义对象

Question

我正在使用Salesforce REST API。我在SFDC中创建了一个新的自定义对象，并希望将数据发送给它。我很乐意将JSON文档POST到标准的SFDC对象，如Account或Contact。但是，当我尝试发布到我的自定义对象时，我收到SFDC的超时。

以下是我用来执行所有POSTS（无论是标准还是自定义）的方法

public static BsonDocument PostJSONToSFDC(string uri, BsonDocument postDoc, string method, HPSUtilities.Transformation.Transformation transformation)
        {
            string accessToken = transformation.sfdcAccess.accessToken;
            string instanceUri = transformation.sfdcAccess.instanceUri;

            string uri2 = instanceUri + uri;

            System.Net.WebRequest req = System.Net.WebRequest.Create(uri2);
            req.ContentType = "application/json";
            req.Method = method;// "POST" or "PATCH"; // a PATCH alternative uses POST with url parm="?_HttpMethod=PATCH"
            req.Headers.Add("Authorization: Bearer " + accessToken);

            string postDocAsString = postDoc.ToJson();

            byte[] bytes = System.Text.Encoding.ASCII.GetBytes(postDocAsString);
            req.ContentLength = bytes.Length;
            System.IO.Stream os = req.GetRequestStream();
            os.Write(bytes, 0, bytes.Length); //Push it out there
            os.Close();
            System.Net.WebResponse resp = req.GetResponse();
            if (resp == null) return null;
            System.IO.StreamReader sr =
                  new System.IO.StreamReader(resp.GetResponseStream());

            string rs = sr.ReadToEnd().Trim();
            MongoDB.Bson.BsonDocument doc2;
            if (rs.Equals("") && method.Equals("PATCH", StringComparison.CurrentCultureIgnoreCase))
            {
                // For successful PATCHs (updates), SFDC mysteriously returns a completely empty response.
                // In this case let's create something more meaningful!
                doc2 = new BsonDocument();
                doc2.Add("success", "true");
            }
            else
            {
                doc2 = MongoDB.Bson.Serialization.BsonSerializer.Deserialize<MongoDB.Bson.BsonDocument>(rs);

            }

            return doc2;
        }

鉴于此代码在POST或PATCHing到SFDC时有效，我相信我必须对自定义对象进行某种SFDC限制。是否有必要将SFDC自定义对象标记为启用API？是否有人知道可能导致我超时的任何其他问题？