How to enable Account Syncing Options in Samsung Galaxy S8+(SM-G955)?

You can choose which data or content to sync between your device and the cloud.  

Navigate to Apps → Settings → Cloud and accounts → Accounts → Samsung Account → Samsung Internet  

Below mentioned are the pictorial representation as follows :

a). From a Home screen, swipe up or down to access the Apps screen.

b). Touch Settings.

c). Swipe to and touch Cloud and accounts.

d). Touch Accounts.

e). Touch the account you want to sync. For this example, touch Samsung account.

f). Touch your Account.

g). To sync a feature, touch the slider next to the desired data. For this example, touch the slider next to Samsung Internet.

CLICK HERE to know how to remove an Account in Samsung Galaxy S8+ ( SM-G955 ).