No, it’s not mandatory to use headless Shopify. But you should use headless Shopify if you want more control over how the products appear, a faster and more flexible Shopify store, intuitive CMS, and a completely customizable URL structure. You can also use headless Shopify if you want a clear separation between the development and the marketing team. Headless Shopify is best for businesses that need complete control over their backends and the frontends.