title: What is the Azure Offer ID
body: <p>I'm trying to do some text to speech using the MS speech api at <a href="https://www.projectoxford.ai/doc/speech/REST/Output#HTTPHeaders" rel="nofollow">https://www.projectoxford.ai/doc/speech/REST/Output#HTTPHeaders</a>.</p>
  
  <p>The header requires a <strong>X-Search-PartnerEventID</strong> which it explains is an <strong>Azure Offer ID is a required parameter</strong> but nowhere does it explain how one gets one.</p>