6.1. Response Codes

Below are the typical status codes returned by a GET request targeting a Freebusy URL. Note that other HTTP status codes not listed here might also be returned by a server.

Status Code	Message
200	OK
302	Redirect
400	Start parameter could not be understood / End parameter could not be understood / Period parameter could not be understood
401	Unauthorized
403	Forbidden
404	The data for the requested `userid` is not currently available, but may be available later.
406	The requested format in the Format parameter is not supported.
410	The data for the requested `userid` is no longer available
500	General server error