+--------+----------------------------------------------------------+ | Short | Longer Return Status Description | | Return | | | Status | | | Code | | +--------+----------------------------------------------------------+ | 1.xx | Preliminary success. This class of status code | | | indicates that the request has been initially processed | | | but that completion is pending. | | | | | 2.xx | Successful. This class of status code indicates that | | | the request was completed successfully. However, the | | | exact status code can indicate that a fallback has been | | | taken. | | | | | 3.xx | Client Error. This class of status code indicates that | | | the request was not successful. The error is the result | | | of either a syntax or a semantic error in the client- | | | formatted request. Request should not be retried until | | | the condition in the request is corrected. | | | | | 4.xx | Scheduling Error. This class of status code indicates | | | that the request was not successful. Some sort of error | | | occurred within the calendaring and scheduling service, | | | not directly related to the request itself. | +--------+----------------------------------------------------------+