WEM Licensing is a full utility-based license model. This means, you pay for the actual usage volume of our published WEM applications. Usage volume is based on, as we call them, events. Events are: Screen loads and re-loads (WEM Interaction nodes); Webservices calls to and from WEM (including REST, SOAP and OData communication); Emails sent; File exports. The average price per event decreases, the higher your usage volume is. Please refer to pricing examples, for a pricing indication of different kinds of applications and usage volumes.