Honestly it signs me out every other day when I try to come back from lunch. However today and yesterday I am not able to print use by labels. I have tried changing printers, labels, restarting the printers, and troubleshooting them and everything is fine on that end which leads me to believe it's this app itself. Please fix it because handhelds are practically impossible to come by and the salesfloor tool isn't available yet on the new phone's we got. This app is the only tool I have for labels