This is an invalid date"" - customer upgrading from 2016 to 2017.1. They do have payroll. I've run into this with users who were using the classic desktop (which they are). Is there a fix for this specific error or do I have to move everyone over to the standard desktop? There may be a fix, however, Sage seems to have a bunch of onesies and twosie fixes to payroll rather than issuing one bundle (?!). I'm starting the hunt for payroll fix. In the meantime, if you have a link and post it here I'd appreciate.