Hello,

Could you post the code so we can see what might go wrong? When using the API it only works if you call UmbracoContext.Current.Application.Services.ContentService.Save(content) afterwards. 

If you only want to use datafolders so you can have a date in the url you should read this blog: http://24days.in/umbraco/2014/urlprovider-and-contentfinder/. You can also add a date to a url programmatically.

Jeroen

Thanks for your reply. This is my code:

public string PostNews(string name, string postDate, string bodyText, int id, string source, int category)
    {
        // Get the Umbraco Content Service
        var contentService = ApplicationContext.Current.Services.ContentService;
        var news = contentService.CreateContent(
            name, // the title of the news
            id, // the parent id should be the id of the group node 
            "NewsPage", // the alias of the news list Document Type
            0);

        // We need to update properties (product id, original name and the price)
        news.SetValue("postDate", postDate);
        news.SetValue("bodyText", bodyText);
        //news.SetValue("Source", source);
        //news.SetValue("newsCategory", category);

        // finally we need to save and publish it (which also saves the news!) - that's done via the Content Service

        contentService.Save(news);
        return "success";
    }

The datefolders are set to create a folders based on the postDate attribute, however, it doesn't. It does only when I click manually Save inside the Umbraco.

You need to do this after you save:

...
contentService.Save(news);

news = uDateFoldersy.DateFolderService.Instance.EnsureCorrectParentForPost(news, false);
contentService.SaveAndPublishWithStatus(news);

is working on a reply...