there are a many problems with contact synchronize

1. The first name and name are inverted on address without email-address
Example:
Groupwise-Display: Dresen Rainer
Iphone-Display: Rainer Dresen

2. Addresses with the same email-adresses sync not
Example:
Groupwise-Display: DŁnker Christian Email: technik-at-rabenhorst.de
Groupwise-Display: Selivanov Dimitry Email: technik-at-rabenhorst.de

3. Deleted User in the Groupwise-Address Book synchronize with Iphone
triple Addresses in Groupwise, two addresses deleted --> 3 Addresses on iphone

4. the name on iphone is builded with the prefix from the email-address (name for at) and the first name from the Groupwise "Name, First Name"-Field

5. Kategorien or groups are twice, one is empty