title: JMeter Append Random Number to Form Field
body: <p>I am load testing a registration form on my internal website and it has one field which must be unique (email address). I'm using JMeter (following <a href="http://jmeter.apache.org/usermanual/jmeter_proxy_step_by_step.pdf" rel="noreferrer">this tutorial</a>). I have a HTTP Request under the Recording Controller in a Thread Group in my test plan. </p>
  
  <p>How do I configure this HTTP Request to add a random number to my email address field (see screenshot)? My company's internal test email server will accept anything at its domain (so like testing347387438@my-internal-test-email-server.com). How can I configure JMeter to add a random number to the email address which should make it unique?
  <img src="https://i.stack.imgur.com/EMbC0.jpg" alt="enter image description here"></p>