I am developing an application on the Genexus platform, I require 2 functions that are integrated as external objects to integrate into the development that I am carrying out that fulfill the following functionalities: 1. One in Java, which handles the chat within the users registered in my application, which allows you to send messages online and offline that handles a mailbox for incoming and outgoing messages. 2. Another function in HTML5, so that the users of the application can generate events via video and can be observed by the users of the application that connect to that event and in parallel, handle the chat, to send messages during the event. It is possible that several events are generated on the same date and time. The user of the application can choose which one to connect to.