Hello, I need help I would like collect some information to write the list of all users in a file.

My script works in version 6.1 but I not in version 8.5.
First I generate the new AXLAPIservices.cs file
Edit and replace the old method by the new one.
But now I have an issue with the wildcard to search "any users"
See below a piece of code.
Thanks for your help.
  Dim axl As AXLAPIService = New AXLAPIService()
 
        Dim req As ListUserReq
        Dim res As ListUserRes

        'List User Name
        req = New ListUserReq
        req.returnedTags.firstName = "%"                           <<< Error see in attachment (Works in CUCM version 6.1)
        req.returnedTags.lastName = "%"
        res = axl.listUser(req)
 
        For Each user As LUser In res.return
            message = message + user.firstName
        Next  

Attachments: