Sometimes, improperly logging out of QuickBooks will result in data corruption. Though, there are a lot of possible causes such as network glitches, computer viruses, power blips, etc. It's still best to log out via normal process and back up your data regularly to avoid data damage.
both the close company command and the close program command call some housekeeping routines designed to close the data base files correctly. Usually the close program command calls those routines and waits for them to complete before shutting down the program.
Usually is the key word. So it is safer to close the company file and then close the program
Not for our company after years of using QB desktop 2015 desktop on windows switched to QB 2020 for Mac and in the first 2 months of using I closed QB as I have for many years now and lost two months of work. The file was corrupted and was told would have to pay for support then told that our file couldn’t be fixed and it was because I should always close company file first then close QB program so now I keep seeing it doesn’t matter how it’s closed