Hi,

I'm trying to log in to CMS12 using a code-based approach, but I can't get it to work.

We have a token-based solution that successfully retrieves the username with valid access. My goal is to use that username to log in to CMS12—without showing the login page—if the user's roles are correct.

From the logs, it looks like I'm authenticated, but not actually signed in to CMS.

Any ideas on what might be missing?

Log; 

2025-09-19 11:39:29.297 +02:00 [INF] AuthenticationScheme: Identity.Application signed in.
2025-09-19 11:39:29.297 +02:00 [INF] After SignInAsync: IsAuthenticated=True, UserName=pers, Roles=[WebAdmins, CmsAdmins, CmsEditors]

In startup.cs

services.AddCmsAspNetIdentity<ApplicationUser>();

var user = await _userManager.FindByNameAsync("pers");

  if (user != null && user.IsApproved)
  {
      var claims = new List<Claim>
      {
          new Claim(ClaimTypes.Name, value)
      };

      var roles = await _userManager.GetRolesAsync(user);
      foreach (var role in roles)
      {
          claims.Add(new Claim(ClaimTypes.Role, role));
      }

      claims.Add(new Claim(ClaimTypes.Role, "CmsAdmins"));
      claims.Add(new Claim(ClaimTypes.Role, "CmsEditors"));

      var identity = new ClaimsIdentity(claims, IdentityConstants.ApplicationScheme);
      var principal = new ClaimsPrincipal(identity);

      await httpContext.SignInAsync(IdentityConstants.ApplicationScheme, principal);      var isAuthenticated = principal.Identity?.IsAuthenticated ?? false;
      var userName = principal.Identity?.Name;
      var userRoles = principal.Claims.Where(c => c.Type == ClaimTypes.Role).Select(c => c.Value).ToList();

      _logger.LogInformation($"After SignInAsync: IsAuthenticated={isAuthenticated}, UserName={userName}, Roles=[{string.Join(", ", userRoles)}]");

  }