title: Passing values from parent pipeline to child pipeline in Azure Data Factory
body: <p>I'm pretty sure this is simple, but I can't seem to find this anywhere. I created a parameter in a parent pipeline (say the pipeline name is TestParent)  in data factory:</p>
  
  <p><a href="https://i.stack.imgur.com/lIFYQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lIFYQ.png" alt="enter image description here"></a>
  This parent pipeline invokes a child pipeline. I want to reference this parameter in the child pipeline. What is the syntax to get the value of this parameter from the parent in the child?</p>