title: How do I trigger a data flow element of an SSIS package using a user-defined parameter/variable?
body: <p>Using SSDT 16.0.61908, SSIS 15.0.2000 and VS Community 16.3.4</p>
  
  <p>I have a package that contains two data flows.  I want to use a package-scope variable defined by the user or passed in through a preceding process to determine which data flow to execute.</p>
  
  <p>For example, if the variable indicates "A" then execute data flow 1.  If the variable indicates "B" then execute data flow 2.</p>
  
  <p>I'm sure there has to be a simple way to do this but I'm not seeing it in any of the documentation clearly.</p>