API ReferenceDelayed SchedulesCancel scheduleCopy pageDELETEhttp://gateway-api.e97e9e55a5d242f9a139.uksouth.aksapp.io/v2/schedules/delayed/:scheduleIdAuthenticationX-API-KeystringYour Esendex API key.Path parametersscheduleIdstringRequiredformat: "uuid"HeadersAccountReferencestringRequired>=1 characterMandatory AccountReference headerResponseNo ContentErrors400Bad Request Error404Not Found Error