Example of a SOAP call to delete a Entity from Autotask API

autotas_delete_entity.xml

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Header>
    <AutotaskIntegrations xmlns="http://autotask.net/ATWS/v1_5/">
      <PartnerID>
      </PartnerID>
      <IntegrationCode>
      </IntegrationCode>
    </AutotaskIntegrations>
  </soap:Header>
  <soap:Body>
    <delete xmlns="http://autotask.net/ATWS/v1_5/">
      <Entities>
        <Entity xsi:type="Appointment" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
          <id>3</id>
        </Entity>
      </Entities>
    </delete>
  </soap:Body>
</soap:Envelope>