Run an external program
                                 
                            
In the Execute external program ("ScriptOptions") section, you can specify that a program (script) is executed after creating the new user.
Example
"ScriptOptions" : {
  "IsHiddenFromRequester": false,
  "IsScriptEnabledDefault": true,
  "DisplayName": "Create a welcome package",
  "Path": "\\\\srv-8man\\scripts\\WelcomePackage.ps1",
  "CommandLineParameters": "{CommonName} {samaccountname} {DomainName}"
},