Hi,

I have a button on a page, onclick of which i am creating tasks and attachments related to those tasks. This works fine when i launch the page from the salesforce org. However, when i use this page as a site page, i get the below error:

"Insufficient Privileges

Insert failed. First exception on row 0; first error: INSUFFICIENT_ACCESS_ON_CROSS_REFERENCE_ENTITY, insufficient access rights on cross-reference id: []"

Below is my function:

      public void saveEmailAsActivity(String appId, Messaging.SingleEmailMessage email)
        {
            /* Start - Added on 12th September 2011*/
            User objUser = new User();
            String strUserName = 'test@sfdcsiteuser.com';
            objUser = [Select Id from User where username=:strUserName];
            /* End - Added on 12th September 2011*/
            
            //Create an activty related to Applicant.
            Task objTask = new Task();
            objTask.Status = 'Completed';
            objTask.whatId = appId;
            objTask.Subject = 'Email:' + email.subject;
            objTask.Description = 'Body:' + email.getHTMLBody();
            objTask.OwnerId = objUser.Id; //Added on 12th September 2011
            insert objTask;

            //Create Attachment(s) if present within the email related to the above activity.
            List<Attachment> lstAttach = new List<Attachment>();
            if(email.getFileAttachments() != null)
            {
                for(Messaging.EmailFileAttachment objEFA: email.getFileAttachments())
                {              
                    Attachment objAttach = new Attachment();
                    objAttach.ParentId = objTask.Id;
                    objAttach.Name = objEFA.getFileName();  
                    objAttach.Body = objEFA.getBody();
                    objAttach.ownerId = objUser.Id;
                    lstAttach.add(objAttach);
                }
                if(lstAttach.size() > 0)
                    insert lstAttach;
            }      
        }

Now if i comment out the "insert lstAttach" portion, the code works fine. However it gives an error only when i try to insert the attachment.  I cannot remove the "objAttach.ownerId = objUser.Id" line, because it gives me another error saying that the "Owner of the attachment must be the same as that of parent task" and if i keep that line i get the "Insufficient Cross Reference Entity" Error.

Can anybody help me with this?

Thanks,

Shailesh.