title: Generate delta from new message and old/previous message biztalk
body: <p>We are pulling an XML report via a web service from a send adapter daily (currently just placing it in a folder via FILE adapter). What is the simplest way to compare new reports/messages against previous reports/message of the same orchestration to get the delta/difference (rather than getting the previous days report from an adapter (FILE, custom DB, etc.)?</p>
  
  <p>Best case scenario for us would be to have the orchestration pull the previous day's message from the message box (is that possible?if so, how?), compare the new message/report to the previous days message/report and create a new report in the same schema but including only the records that have changed (delta). </p>