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Exchange ActiveSync Errors and Solutions

This table is a list of error codes for Pocket PC 2002, 2003, Smartphone 2002, 2003 and Windows Mobile 5.0, 6.0, 6.1 and 6.5 devices (including Standard, Professional and Classic), Windows Phone 7 and 7.1 as well as solutions.

Error Sorted by: WM_5_Error asc

Originally based on the information provided at Exchange Error Codes. Used with permission.

Errors received after a synchronization attempt on the device have error codes appended to them. These codes help determine the source of the error. The errors are one of the following types:  

Error code Descirption
DEV_errorcode This error code indicates that the error was from the Server ActiveSync client on the device.
MIS_errorcode This error code indicates that the error was from the Mobile Information Server with the Server ActiveSync component installed
SYNC_errorcode This error code indicates that the error was from the Exchange 2003 server. MIS_errorcode errors were replaced with SYNC_errorcode errors on Windows Mobile 2003-based devices.
HTTP_errorcode  Standard HTTP error (Internet related)
CONNMGR_errorcode Connection Manager error
INTERNET_errorcode Standard WinInet error (Internet related)
HEX errorcode  

These errors can appear either on the device, the Application Event Log, IIS Logs or the NexTags logs.

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