Build Multi-Vendor Print-on-Demand Platform

We will build a platform similar to Printify, where registered users can place orders. There will be three distinct user roles: Manufacturer Companies that provide digital printing or custom-printed products—such as print-on-demand centers—can join the platform as "Manufacturers." We will include a registration page for those wishing to become manufacturers, and only companies approved by us will be granted this status. Through their own dashboards, manufacturers can add their products and list them for sale. Product images and descriptions must adhere to specific standards. Manufacturers will be able to view their earned revenue (payouts) via their dashboards. Products will include variants. For image uploads, we will not use mockups; instead, there will simply be an "upload photo" button. Both the manufacturer and the platform will have the ability to assign specific discount rates to individual sellers—for instance, offering discounts to high-volume sellers. Each manufacturer will have a dedicated store page, which sellers will be able to view. Platform The platform acts as the site administrator and has visibility over all orders. It will collect a percentage-based commission from manufacturers for each sale, with commission rates varying by category. The platform can create categories, within which manufacturers can then list their products. Seller Sellers are individuals or businesses that sell products—via their own websites, online marketplaces, or social media—and have these items produced and shipped by the manufacturers listed on the platform. Sellers purchase the products offered by these manufacturers and have them delivered directly to their own end customers. Shipping The platform must include shipping integration, allowing sellers to track their orders once they have been dispatched. Each manufacturer should be able to set individual shipping costs for each product and its variants. Additionally, the system should support free shipping for subsequent units (e.g., the 2nd or 3rd item) of the same product added to a cart. For manual orders, sellers should be able to place orders by uploading their own shipping labels. This shipping label can be uploaded on the product page. If a seller adds 5 different orders to their cart and completes the checkout, the system will generate 5 distinct orders, each with its own corresponding shipping label. Invoicing System Talepuzerinebaski.com will automatically issue invoices to the seller via an integration. Manufacturers will manually issue an invoice to the platform each month; they will be able to view their total monthly sales within the system and issue an invoice to Talepuzerinebaski.com for that amount. Consequently, the manufacturer will receive payment corresponding to the invoice they have issued. Products Multiple manufacturers will be able to sell the same product. Products will generally feature variants, similar to those found on Dorukbaski.com. The platform must be capable of creating new variants. Methods for Sellers to Place Orders API / CSV / Manual A) Generic Order API (No platform-specific integration) • The seller’s system sends the order to your endpoint. • For the MVP, a single endpoint is sufficient: o POST /orders • Data to be transmitted: o seller_id, manufacturer_id o product information, variant, quantity o link to the design file or the file itself o recipient’s name/phone number/address o shipping method (integration / manual label) B) CSV Upload • For sellers without technical capabilities, bulk orders can be uploaded via CSV. C) Manual Order (Fallback) • Sellers can enter orders one by one through the dashboard.