Excluding a customer from a group will permanently rule him out of that particular group. So, excluding a customer has more value than removing a customer.
Excluding a customer from a group is a permanent action, unless you revert it in the future.
- Click on the Groups
tab, on the left side of your screeen.
- Click on the check box next to the name of the customer you wish to exclude from your group.
- Click on Exclude.