Migrate CMS11 > CMS 12; episerver/cms is not found in DXP

Hi.

Undergoing migration from cms 11 to cms 12 and feeling like it has gone well and having created a deployment pipeline to Integration in DXP. Working as is should in local development environment, but for some reason after logging in /Utils/Login I am getting a 404 for /episerver/cms.

What could the obvious reasons be at that point?

  • The differences in appsettings.config vs appsettings.Integration.config is the Keyvault-things (Interpolation at startup).
  • No unique ui url or similar settings is made.
  • Site can be browsed with exeption to minor issues which I will fix later.

Perhaps where could be a bulding/publishing misstake; but having compared to another CMS12 project the output is pretty similar.

Any other things anyone has experienced?

#343103
Jul 27, 2026 10:44
Vote:

If you are using Optimizely Identity as well than the path is changed from /episerver to /ui.  In CMS 12 you can override the path here

#343104
Jul 27, 2026 19:24

Yes; that was surely it. Thanks Mark!

#343105
Jul 28, 2026 8:01
* You are NOT allowed to include any hyperlinks in the post because your account hasn't associated to your company. User profile should be updated.