This error message occurs if you're not loged in as the administrator when opening an older file into a newer QuickBooks version. You'll need to log in as the administrator, the convert your company files into the new software version.
How do I update my company file following my upgrade to Desktop Pro 2019?
Hello, I am receiving this message even after having used the file several times after the upgrade. I thought the file had been updated since I went through the process with a remote support person. Any ideas on why it is wants to update the file now and is it safe to do so?