SharePoint is very customizable. Building a SharePoint site involves business analysis, delivery of the off the shelf and custom components including custom development, assembly of ready site. The process includes: information architecture planning, site template selection (team site, communication site, hub site), branding and theming, navigation structure design, web part configuration, custom SPFx (SharePoint Framework) development, workflow automation with Power Automate, permissions and security setup, search configuration, and integration with other systems. Modern SharePoint emphasizes responsive design and mobile-first experiences.