Qualifications are publicly visible to workers on the MTurk website and workers can request Qualifications (e.g., when a HIT requires a QualificationType that they have not been assigned). QualificationRequests can be retrieved via GetQualificationRequests. This function rejects specified qualification requests.
Note that rejecting a qualification is not the same as revoking a worker's Qualification. For example, if a worker already has a score of 100 on a given QualificationType and then requests the same QualificationType, a RejectQualification leaves the worker's existing Qualification in place. Use RevokeQualification to entirely remove a worker's Qualification.
RejectQualifications() and rejectrequest() are aliases.