Update Business Unit Subscription List - Unsubscribe Subscriber from List

Question

I have the list in my business unit. There are lots of subscribers. I need to be able to change the opt in opt out preferences for any subscriber from API call.

I found the next article http://help.exacttarget.com/en/technical_library/web_service_guide/technical_articles/managing_subscribers_on_lists/

And here is my code... When I execute it, status is OK, but when I refresh the exacttarget page / list with subscribers, I don't see any changes. How to manage Opt In / Opt Out preferences for any particular list and subscriber?

var sub = new Subscriber
{
    SubscriberKey = "10103-KZ-P-Cust",
    Client = new ClientID
    {
        ID = 11011214,
        IDSpecified = true
    }
};

var benList = new SubscriberList
{
    ID = 6851919,
    IDSpecified = true,
    Status = SubscriberStatus.Unsubscribed,
    Action = "Update"
};

sub.Lists = new[] { benList };

var soap = new SoapClient();

soap.ClientCredentials.UserName.UserName = _login;
soap.ClientCredentials.UserName.Password = _password;

APIObject[] results;
string requestID;
string status;

UpdateResult[] updateResults = 
    soap.Update(new UpdateOptions(), new APIObject[] { sub }, out requestID, out status);

Answer 1

Online documentation is incomplete.

We need put StatusSpecified = true; in order to send changed status to ExactTarget.

Full source code:

var benList = new SubscriberList
{
    ID = 6851919,
    IDSpecified = true,
    Status = SubscriberStatus.Unsubscribed,
    StatusSpecified = true, // <==== THIS ONE WAS MISSING FOR PROPER WORK
    Action = "Update"
};

This property was not listed neither here http://help.exacttarget.com/en/technical_library/web_service_guide/technical_articles/managing_subscribers_on_lists/ nor here http://help.exacttarget.com/en/technical_library/web_service_guide/objects/subscriberlist/