Hi Fiona, I had a similar problem a few weeks ago. The only difference being that I was trying to batch remove users. I was able to successfully get through about half of my batch files before Blackboard started to come back with the 'failed user not found' error. I knew the users were there because I could search for them and they appeared. When I went to the server it was complaining about a shortage of resources. We use NT, and it recommended increasing the size of the page file. The process of increasing the page file requires a reboot which clears any system resources anyway. After doing this I was able to complete my batches. Give the server a reboot anyway - making sure that no one is using it at the time, of course - and see whether normal service is resumed. Peter Edge Web Developer City College Manchester >>> Fiona Littleton <[log in to unmask]> 19/11/01 11:49:35 >>> Good morning to you all I have been batch enrolling users on to courses since August - with no problem. Today I am trying to batch enroll users (that I know exist) on to a course, same format as before and blackboard returns an error, "failed user not found". anyone have any idea what is going on here??? I know the users exist, and I even tried this with a smaller number of users - no joy! It is too early for Blackboard support America - can anyone help me or point me in the right direction? I am baffled! Thanks Fiona Littleton Smurfit School, Dublin