hello jacob
you can call the fm with following paramgters
CALL FUNCTION 'CRM_STATUS_CHANGE_INTERN_MULTI'
EXPORTING
CLIENT = SY-MANDT
* SET_CHGKZ =
* IMPORTING
* ERROR_OCCURRED =
* OBJECT_NOT_FOUND =
* STATUS_INCONSISTENT =
* STATUS_NOT_ALLOWED =
TABLES
STATUS = lt_status
OBJECTS = lt_objects
EXCEPTIONS
OBJECT_NOT_FOUND = 1
STATUS_INCONSISTENT = 2
STATUS_NOT_ALLOWED = 3
OTHERS = 4.
lt_objects here will contain the guid of the incidents and lt_status will contain the status which u want to set to ur incident
Regards
Naresh