[MS-ASCMD]: ActiveSync Command Reference Protocol Specification

The server ID is obtained from the ServerId element of a previous FolderSync command (section
2.2.2.4) or FolderCreate command (section 2.2.2.2). The ServerId specifies a unique identifier
assigned by the server to each object that can be synchronized. The client MUST store the ServerId
for each folder and MUST be able to locate a folder given a ServerId.
The client MUST store the ServerId as an opaque string of up to 64 characters.
2.2.3.141.5 ServerId (ItemOperations)
The airsync:ServerId element is an optional child element of the Fetch element in
ItemOperations command requests and responses. It specifies a unique identifier that is assigned
by the server to each object that can be synchronized or have an item operation applied to it. This
element is defined in the AirSync namespace.
Elements referenced in this section are defined in the ItemOperations namespace, except where
otherwise indicated by the presence of a namespace prefix (as defined in section 2.2.1).
Command request/response
Parent
elements
Child
elements
Data type
Number
allowed
ItemOperations command
request (section 2.2.2.8.2) Fetch
operation
Fetch (section
2.2.3.60.1)
None
string ([MS-
ASDTYPE]
section 2.6)
0...1
(optional)
ItemOperations command
response (section 2.2.2.8.3) Fetch
operation
Fetch None string 0...1
(optional)
The client MUST store the value of the airsync:ServerId element for any item that is retrieved by
means of the Sync command (section 2.2.2.19) or Search command (section 2.2.2.14). In an
ItemOperations request, the airsync:ServerId element can be used by the Fetch element to
refer to the location of the item in question.
2.2.3.141.6 ServerId (Sync)
The ServerId element is an optional child element of the Change element, the Delete element,
and the Fetch element in Sync command requests, and a required child element of the Delete
element, the SoftDelete element, the Change element, the Add element, and the Fetch element
in Sync command responses. It respresents a unique identifier that is assigned by the server to
each object that can be synchronized. The client MUST store the server ID for each object as an
opaque string of up to 64 characters and MUST be able to locate an object given a server ID.
All elements referenced in this section are defined in the AirSync namespace.
Command
request/response
Parent elements
Child
elements
Data type
Number
allowed
Sync command request
(section 2.2.2.19.1)
Change (section
2.2.3.23)
Delete (section
2.2.3.40.2)
Fetch (section
2.2.3.60.2)
None
string ([MS-
ASDTYPE] section
2.6)
0…1
(optional)
Sync command response
(section 2.2.2.19.2)
Delete
SoftDelete
None string 1…1
(required)
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[MS-ASCMD] — v20110315
ActiveSync Command Reference Protocol Specification
Copyright © 2011 Microsoft Corporation.
Release: Tuesday, March 15, 2011