I've installed DSFW and got everything working OK. However samification has failed on a handful of our users. The error is

[15:59:53, Sat Jan 30, 2016, 1]: samifying cn=jcaddy,ou=Users,ou=Bedwas,dc=petersfood,dc=com
[15:59:53, Sat Jan 30, 2016, 1]: Samification> LDAP_UNWILLING_TO_PERFORM : The server is unwilling to perform the requested operation

The users that that failed were previously samba enable in iManager for OES. All the others users were samified ok and can log on to the domain without problem

Any idea how I can samify these users?