Action Link https://www.drupal.org/project/action_link Create links/buttons that trigger configurable actions.
Flag ajax link triggers ECA workflow then resets Create a Task content type. Create a Task Log storage entity type. Add a Task reference field. Configure automatic label: [storage:field_task:entity:label] - [storage:created]. Create a Task Complete flag type. Ajax link type. Configure for Task content type. Create Log Task ECA workflow. Event: Flag Action: Create Task Log entity Action: Set Task Log Task reference field to flagged entity. Save Task Log.