<soap:Header>
<Header xmlns="http://www.twinfield.com/">
  <SessionID>string</SessionID>
  <AccessToken>string</AccessToken>
  <CompanyCode>string</CompanyCode>
  <CompanyId>guid</CompanyId>
</Header>
</soap:Header>
The twinfield header soap call requires CompanyId guid which is a 32 character string separated by 4 dashes(-). How to find the guid?