When any ServiceNow developer starts working on the Service Portal Widgets they discover there are mainly two out of the box (OOTB) methods that are used to communicate between the Client Side and Server Side and those are c.server.update() and c.server.get(). Both rerun the widget’s server script, but they behave differently and are meant to be used for different types of operations. In this article, we will dive into the concepts behind these two methods and understand the right way to choose which one to use in different scenarios.