Partner Commerce Partner Commerce for Administrators Customizing Your Application Current: Customizing Logic in the Services PDF Download PDF Download page Customizing Logic in the Services. Current page All pages Customizing Logic in the Services Your application is built around the concept of Modals and Services and pairing the two to work together. You can do one or more of the following:Change the modal that goes with some business logic and serviceChange the business logic or service for a particular modalCreate completely new modals and new services ×