How to modify user list attribute by csv

How to modify user list attribute by csv

Hi,
I need to change many attributes of users account already present in AD, but not work.
I try using a csv list with this attribute:
givenName
sn
telephoneNumber
mail
userPrincipalName
physicalDeliveryOfficeName
title
company
department
postalCode
homeDrive
homeDirectory.

after running goes out this error:
Unable to retrieve the object from AD - The object does not exist or access denied 

I try again with other attributes or less attributes but it not work again.
while with other users it works .
I not understand why not work and work with same kind of user.
What I have to check  ?

thanks
best regards
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