In the Customer Edit screen, Account Information page, there is a section called "Account Management" with a setting that will allow you to Disable Login. Setting this to Yes and saving will automatically log-out that customer and prevent them from logging in.
This setting can be adjusted for multiple customers using Bulk Actions (See Below)
You can also set the value of this setting using by Importing Customers and using the
is_login_disabled column with values of
0 for No and
1 for Yes
Updated 2 months ago