You must have permissions to remove the roles for the user.
Procedure
On the System Manager web console, click Users > User Management > Manage Users.
On the Manage Users page, select a user and click Edit.
On the User Profile | Edit | <User Name> page, click the Membership tab.
Select the roles you want to remove and click UnAssign Roles.
You can also assign roles to users using the Roles functionality in System Manager. To access Roles, on the System Manager console, click Groups & Roles > Roles
Click Commit to save the changes.
Note:
You can also assign roles to users using the Roles functionality in System Manager. To access Roles, on the System Manager console, click Groups & Roles > Roles.
Perform one of the following:
To save the changes, click Commit.
To save the changes and stay on the same page, click Commit & Continue.