Modify LDAP Values

[SuperDOS]

Hi,

I wonder if there's some way to modify the synced ldap values from Active Directory to OTRS.
I've added a field for manager for our users and it syncs over to OTRS.
But the value in manager is in this format "CN=Roger Moore,OU=Users,OU=London,OU=Offices,DC=prefix,DC=Domain,DC=Com

All I want to fetch is CN, is it possible?

This is the mapping-string in config.pm:
[ 'UserManager', 'manager', 'manager', 1, 0, 'var', '', 0 ],

[Rooobaaat]

Sorry this is not possible.
This would be custom development.