In some examples, applications and/or other services integrated into the communication platform can perform actions and/or otherwise provide data that can be presented via the second section 206. In some examples, such actions and/or other data can be associated with events. In some examples, such actions and/or other data can present as messages. That is, actions performed by applications and/or services can be represented by user interface elements in the user interface 200. For example, an update to an object can be associated with a message presented via the second section 206. In another example, the completion of a task performed via an application can be associated with a message that can be presented via the second section 206. That is, the second section 206 can present messages associated with users and/or applications. In some examples such messages, and associated metadata, can be referred to as “events.” In some examples, such applications and/or services can be third-party applications and/or services.