Developer Documentation Library > Mobile SDK > Disconnected mobile application reference > Mobile Synchronization Web Service (MobileSyncWebService) reference > Header variables
 
Header variables
Session-Token
Returned in the /Logon URL's GET response and must be included in all URL request headers.
Last-Modified
Returned in the header of all responses that return data. If the client is going to cache, the data should use this file as the file-time (in conjunction with the If-Modified-Since header variable).
If-Modified-Since
Included in any GET request that returns data, except requests for Sample or Quota data. The MobileSyncWebService compares the If-Modified-Since time, in the incoming request, to the requested data's last modified time. The variable returns a 304 status response when the times are identical.
Accept: application/xml
The header must be included to enforce the returned XML format.
See also
Mobile Synchronization Web Service (MobileSyncWebService) reference