Intuit API request failing with generic error when connecting to Desktop, but works for Online

Question

Using the IPP.NET SDK v2.0.1, having an issue where simple requests are failing with generic error messages specifically when connecting to a QuickBooks Desktop instance.

Online works fine.

Connection Method:

    public QBClient(string appToken, string companyId, string accessToken, string accessTokenSecret, string consumerKey, string consumerSecret, ServiceType qbService)
    {
        AppToken = appToken;
        CompanyID = companyId;
        AccessToken = accessToken;
        AccessTokenSecret = accessTokenSecret;
        ConsumerKey = consumerKey;
        ConsumerSecret = consumerSecret;

        IntuitServicesType ist = IntuitServicesType.QBO;

        if (qbService == ServiceType.QBDesktop)
        {
            ist = IntuitServicesType.QBD;
        }

        _oAuthValidator = new OAuthRequestValidator(AccessToken, AccessTokenSecret, ConsumerKey, ConsumerSecret);
        _serviceContext = new ServiceContext(AppToken, CompanyID, ist, _oAuthValidator);

        string ticket = _serviceContext.Ticket;
        this.DataService = new Intuit.Ipp.DataService.DataService(_serviceContext);
    }

The connection method above throws no exceptions. However, the following call:

DataService.FindAll<Intuit.Ipp.Data.Customer>(customer, 1, 1000);

produces the following request / response captured in Fiddler:

Request:

URL: POST https://quickbooks.api.intuit.com/v3/company/COMPANY-ID-REMOVED/query

Body: select * from Customer startPosition 1 maxResults 1000

Response:

{"Fault":{"Error":[{"Message":"Operation failed, see details for error","code":"1000"}],"type":"Validation"},"time":"2013-11-16T00:20:30.739Z"}

What should be changed to successfully query QuickBooks Desktop?

Answer 1

V3 QBD can return at max 500 results in a time unlike V3 QBO which can return 1000. Please alter your query. We have an enhancement request up for this.