title: Azure DevOps Notifications Force to Specify a Filter
body: <p>I want to setup a notification whenever there is a release. I was able to do that before, but now I couldn't set this up for a different project. I don't know if there was something changed in Azure DevOps or I messed up myself.</p>
  <p>Azure tells me to specify a valid filter but I don't have anything to filter. I can't remove the filter by clicking on the red X button. Please see the screenshot.</p>
  <p>I read <a href="https://docs.microsoft.com/en-us/azure/devops/notifications/manage-team-group-global-organization-notifications?view=azure-devops" rel="nofollow noreferrer">this document</a> and it tells me that filter criteria are optional. See number 8 under &quot;Create an email subscription&quot; in the document.</p>
  <p><a href="https://i.stack.imgur.com/KvipR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KvipR.png" alt="Azure DevOps Notifications - New Subscription" /></a></p>