Based at least in part on determining that the message is associated with a high priority, the component of the server(s) 102 can cause the message to be presented via a user interface associated with the communication platform in association with a third presentation characteristic, as illustrated at operation 812. High priority messages can be associated with particular users or applications, may require or expect an action, may be associated with an expiration time, etc. In some examples, user interface elements associated with high priority messages can be presented in a different size, different color, different font, different animation, and/or the like, for example, relative to “normal priority” messages and/or “l(fā)ow priority” messages. That is, in at least one example, based at least in part on determining that the message is a high priority message, the component of the server(s) 102 can send instruction to the application 140 to present the user interface element associated with the high priority message in association with the third presentation characteristic. In some examples, the application 140 can receive a message associated with metadata indicating that it is a high priority message and can render the user interface element associated therewith based at least in part on the third presentation characteristic. An example of a user interface element associated with a high priority message is illustrated above with reference to