I've created a rule that sends a push notification to a specific user when a certain content type node is published. That said, in order to specify which user receives the notification, the 'Send Push Notification to Specific User' rule requires that I type in an existing uid.
That said, I've pulled an integer from a content type field, and I want to set that integer as the uid to send the notification to (as the user receiving a notification changes often). Naturally, Drupal won't let me do that, even after I convert the retrieved string (numeral, e.g. 7) to an integer.
Is it possible to achieve this? I'm stumped.