title: Is there a possibility to validate POSTMAN request fields if they mandatory or not
body: <p>I want to ask if there is an ability to run postman request a lot of times by one click (without creating a lot of duplicates) and at the each run validate if one of the JSON attribute is mandatory or not. Please provide information on how to do it.</p>
  <p>Example Scenario:</p>
  <ol>
  <li>I run &quot;CREATE ORDER&quot; put request (it has three mandatory fields - sourceSystem, customer, buyerOrderNumber)</li>
  <li>Postman runs &quot;CREATE ORDER&quot; the first time and validates getting the 400 Bad Request error when sending &quot;CREATE ORDER&quot; without sourceSystem field</li>
  <li>Postman runs &quot;CREATE ORDER&quot; the second time and validates getting the 400 Bad Request error when sending &quot;CREATE ORDER&quot; without customer field</li>
  <li>Postman runs &quot;CREATE ORDER&quot; the third time and validates getting the 400 Bad Request error when sending &quot;CREATE ORDER&quot; without buyerOrderNumber field</li>
  </ol>
  <p><a href="https://i.stack.imgur.com/vY0Ip.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vY0Ip.png" alt="enter image description here" /></a></p>