400-499 Subscription Validation

ErrorMessage
400The subscriber could not be found on the specified JobID
401The subscriber is already unsubscribed from the specified list
402The Parameters array did not contain any values or did not contain any of the Parameters we were looking for
403The EmailAddress, SubscriberKey and SubscriberID parameters were not specified or they were empty
404The SubscriberKey permission is turned on but only EmailAddress was provided. You MUST supply SubscriberKey and/or SubscriberID
405You supplied SubscriberID along with SubscriberKey and/or EmailAddress. These values refer to different subscribers
406You supplied SubscriberKey along with SubscriberID and/or EmailAddress. These values refer to different subscribers
407You supplied EmailAddress along with SubscriberID and/or SubscriberKey. These values refer to different subscribers
408SubscriberNullOrEmpty
409SubscriberListNullOrEmpty