In environment https://dmrkt1009pv007.crm4.dynamics.com we have created a segment with name "Jenny_D_triggertest_öppnat_171130". This segment does not pass the error check because the name contains illegal characters. However, the "Go Live" button is still clickable, and clicking it results in an exception being thrown (see attached screenshot). It would be better if the click on "Go Live" informs the user that the segment does not pass the validation in a user friendly way.