In some implementations, a method includes receiving user input indicating a request to create a task and presenting a visual representation of the task. The method can also include receiving user input indicating an assignment of the task to an assignee, sending, to a second application, a first notification indicating the task and the assignment of the task to the assignee. It can further include receiving, from the second application, a second notification indicative of a change to a status of the task, and modifying the visual representation of the task to graphically illustrate the change in the status of the task in the user interface of the first application.