57008: 'EventType' format must be StringPositive FeedbackNegative FeedbackERROR: 57008error-57008 page anchorPositive FeedbackNegative FeedbackPROGRAMMABLE SMSERROR Descriptiondescription page anchorPositive FeedbackNegative FeedbackSpecified 'EventType' format must be String Possible Causespossible-causes page anchorPositive FeedbackNegative FeedbackSpecified 'EventType' format is invalid, String required Possible Solutionspossible-solutions page anchorPositive FeedbackNegative FeedbackConfirm a valid 'EventType' is being passed in request.