3.1.5.3 Sync Command Request
A client uses the Sync command request ([MS-ASCMD] section 2.2.1.21) to synchronize its Contact class items for a specified user with the contacts currently stored by the server.
Any of the elements that belong to the Contact class, as specified in section 2.2.2, can be included in a Sync command request as child elements of the airsync:ApplicationData element ([MS-ASCMD] section 2.2.3.11) within either an airsync:Add element ([MS-ASCMD] section 2.2.3.7.2) or an airsync:Change element ([MS-ASCMD] section 2.2.3.24).
Contact class elements can be transmitted as child elements of the Supported element ([MS-ASCMD] section 2.2.3.179) in order to support ghosted elements.<1>
The Sync command is specified in [MS-ASCMD] section 2.2.1.21.
The client can request that the server truncate the contact notes field in a Sync command request. For more information, see section 3.1.5.4.