Some users from AD missing

I Have about 50 users in Active Directory. After import on userlist is only 17 users.
In notification area after few hours i’ve got info “AD users with special symbols in the name or Cyrillic letters not added to portal”
What can I do? Maybe some script to convert polish characters “ĄŚĆŃŹŻĆÓŁ” to english equivalents “ASCNZZCOL”?

@jojoro ,

As of the moment, we don’t have any Script Procedures that converts polish characters to English. We will seek an information from our Developers if there is a task that can be performed to work around this issue. We will communicate with you via support ticket if additional details will be needed.

Thank you for information. I will wait for the problem to be solved.