What does the Auto-synchronize property do in Button Widget?

When I add a button to save the change I made, I find out that there is this "Auto-synchronize" property (in the ‘Events’ section) right under the ‘On Clock’ and ‘Close Page’ properties.  What does this "Auto-synchronize" property do?  What does it try to synchronize with?  I look into the Mendix Docs (https://docs.mendix.com/refguide/button-properties) to find the answer, but nothing is mentioned.  So can anyone tell me what this property is for.  Thanks.  
1 answers

This is valueable in an offline-first environment. In that case your app works locally fine, without any network connection. Synchronising is between the local database and the server database in the cloud (read more here: https://docs.mendix.com/refguide/offline-first)

Auto synchronising means that the proces described above will be triggered automatically after hitting the button and of course if there is a network connection to make sync possible.