Seller Onboarding

Updated March 2026

This section walks you through each step of the onboarding process in detail. If you get stuck at any point, contact our support team for assistance.

Step 1 — Create Account

Start by creating your seller account. This takes less than two minutes.

Visit app.mastersel.com and click “Register”
Fill in your business details and email address
Check your inbox and verify your email
Log in to the seller dashboard

Step 2 — Connect Your Store

Your e-commerce store needs to be connected so Mastersel can import your products and keep them synchronized. Choose the method that works best for your platform:

Plugin integration — the easiest option. Install the Mastersel plugin for WooCommerce, Shopify, PrestaShop, or other supported platforms. The plugin automatically syncs products, prices, and stock levels.
XML product feed — provide a URL to your product feed for automatic synchronization. This works with any platform that can generate a standard XML feed.

Product data is synced continuously. When you update a price or stock level in your store, the change is reflected in Mastersel automatically.

Step 3 — Import Products

After integration is set up, the system automatically imports all products from your store. Import time depends on your catalog size — small catalogs import in minutes, larger ones may take up to a few hours. You can monitor the import progress in your dashboard.

Step 4 — Map Categories & Parameters

Category mapping links your store categories with Mastersel’s standardized categories. This step is required before you can activate products, because marketplaces need correct product classification to display listings properly. In addition to categories, you should also map product parameters (such as color, size, material, etc.) to ensure your listings include the correct attributes for each marketplace.

Step 5 — Complete Product Data

Products that have all required data (EAN, weight, mapped category, image, price) are automatically activated and become eligible for marketplace distribution. Review your product list and ensure all items have complete data to go live.

Step 6 — Start Receiving Orders

Once products are active, they begin appearing on marketplaces. When customers purchase your products, orders automatically appear in the Orders section of your dashboard. You’ll be able to review, confirm, and fulfill them right from the panel.

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