Powershell step not showing on Flow DesignerIssue Cannot select the Powershell step when creating a custom action in Flow DesignerCauseIn order to create a custom action using the powershell step you need a supporting integration Hub subscription installed on the instance.At the time of writing Powershell step requires at a minimum the professional subscription or any of the Automation Engine subscriptionssee KB1224540 - List of ServiceNow Subscriptions that include spokes for a full list of the subscriptions that proved the powershell step. Follow the link to Integration Hub Overview with all spokes included in Integration Hub Subscriptions ResolutionInstall a supporting subscription package to allow the use of the powershell step in custom actions.