While Shopify's built-in bulk editor allows you to duplicate products, it may be time-consuming and less efficient for large numbers of products. Using third-party apps or custom scripts through Shopify's API can provide a more efficient and automated solution for bulk product duplication. However, it is essential to thoroughly test and review any duplicated products to ensure accuracy, consistency, and proper functionality. Additionally, be aware of any potential duplicate content issues and update your SEO metadata accordingly to maintain your store's SEO performance.