Importing bulk users into workgroup manager

Hi

Was wondering if someone may be able to help me with an odd issue. We are a school which has an active directory infrastructure. We just had an apple network installed and we want to use the same username we allocate our pupils for them to use on the apple network.

I managed to import the majority of our pupils usernames into workgroup manager but about 100 of the pupils have not managed to copy over.

The issue is we have 2 types of username formats.

With years 8,9,10,11 groups we used the format year started followed by class name and surname (e.g 04qjones)

but for our year 7 group we changed the format to year following by firstname.surname (e.g. 07chris.jones)

It has managed to not copy any of the new format (07chris.jones). Does anyone know what the reason for this could be?

Thanks

Are you planning on keeping your active directory server or are you migrating completely over to apple?

You can't use "." in usernames on OS X (at least the short name) as it's an invalid character.

am looking to keep the active directory, the mac network is just a second network. Ahh thats interesting I didn't realise that you couldn't have a . didnt realise that was an invalid character. that could explain it then. thanks