Re: How to make a correction in column name in a published app
You need to request the owner of that app to make the change or request that ownership of the app be transfered to yourself. Your Qlik Server Admin should be able to grant permissions if approved.
Once you have ownership you can duplicate the app into your work folder and when the change has been made the Admin will be able to publish your changed app back into the stream. Again I assume this is done in a controlled way.