Hi, I am using Umbraco version 7.3.7 assembly: 1.0.5876.30923

Creating a member via Umbraco API allows to create multiple users with same username.

  var m = ApplicationContext.Current.Services.MemberService.CreateMember("jivan@a.abc", "jivan@a.abc", "jivan", "member");
    ApplicationContext.Current.Services.MemberService.Save(m);

Is that normal behaviors? So we must check before creating a new member.

Note: using System.Web.Security.Membership.CreateUser() does not allow to create members with same username.

-Jivan Thapa