While using notes client v1001 till v1001FP5 - people reported a issue related to folders.
Which was reported under [ SPR# RKKKBDAF9R - Disallow creation of duplicate folders during drag/drop]. The development team worked on this issue and fixed it in the next fix pack - v1001FP6.
The fix was if we try to drag&drop a duplicate folder under the parent folder which already has the child folder with the same name then the notes will give a pop-up message to users saying (A folder or view with this name already exist).
But if we drag the child folder and drop it under the same parent folder in which it was present then it also gives the same pop-up message to users saying (A folder or view with this name already exists).
Therefore in order to reduce the confusion, for the above action only - we should change the pop-up message to "Action not allowed" or "Action denied" etc...