CreationRule for the userPrincipalName

Hi Dirk,

maybe you can adapt from the following:

{
        "Name": "samaccountname",
        "IsHiddenFromRequester": false,
        "Definition": {
          "Type": "TextField",
          "IsEnabled":true,
          "Label": "SAM-Account-Name",
          "IsRequired": true,
          "Constraints": {
            "CreationRule":"<subst>({sn})<toUpperCase>(<subst>(<firstLetter>({givenname})))",
            "ForbiddenChars": ["ö","ä","ü","ß"],
            "ValidationInformation": "keine Umlaute!"
          }
         }
      },

This is a snippet from one of our templates for account creation and how we build the SAMAccountName.

Cheers,

Matthias.