Sun Java System Calendar Server 6.3 WCAP Developer's Guide

Error Codes

If the operation is successful, the error number of 0 is appended to the error string, If an error occurs while deleting from the calendar, the delete_layer_errno[x] value is set to 1, where x is the calendar’s index in the passed calid list. In addition, errno contains the error: FAILED: DELETECOMPONENTS_BY_RANGE_FAILED (21).