Do I need to click synchronize each time before closing shift?

[Jack CHK]

What is the purpose of the Synchronize button if a wifi network is available? Does the Operator need to synchronize manually and when?

[Theodore]

In most cases, you don't need to synchronize POS manually.

The 'Synchronise' button need to use in certain technical problems like broken internet connection when data doesn't synchronize automatically, generally, this does not happen.