User71929859 posted
I believe you are using SharePoint APIs to do that.
First check whether data is passing from your asp.net application to the sharepoint application. Place some logs and see what's going on. You can use something like ELMAH or log4net for that.
If the data is passing all good from your asp.net application, then the problem is with the SharePoint. Check the ULS logs and see what's happening in the SharePoint application.