At the end of each business day, you should close the register and determine if you have any discrepancies in your till. DayEnd report will tell you at a glance what transactions occurred during the day and this is essential for balancing the till at the day end. If you don’t do DayEnd, it will be hard to find any mistakes later, and you won’t be able to print some reports like sales summary.
Even the cloud and local Databases are synchronized with each other, Database backup is still needed “just in case” hard drive or internet goes wrong. Ideally, you should store your backup files (c:\woopos\backup) off-site.