Marketplace Vendor Commission

What This Recipe Does

This recipe creates a vendor commission program for multi-vendor marketplaces. Each vendor earns 70% of the revenue from their own product sales, and the marketplace platform keeps the remaining 30%. When a customer places an order containing products from multiple vendors, every vendor whose products appear in that order earns their commission independently.

The key difference from a standard affiliate program is the resolver: this recipe uses “every binding wins” instead of “newest binding wins.” In a typical affiliate setup, only one collaborator earns per transaction. In a marketplace, that would mean only one vendor gets paid per order, which breaks the entire model. With “every binding wins,” all vendors with products in the order earn simultaneously.

Who It’s For

• Marketplace operators running multi-vendor storefronts where each vendor lists and sells their own products through a shared platform
• Platform owners who need automated revenue splitting between the marketplace and its vendors without manual calculations
• WooCommerce store owners using vendor or marketplace plugins who want a clean, trackable commission system for paying vendors their share

How It Works

When you apply this recipe, Siren creates a program that watches for a specific engagement event: collaborator product sold. Each vendor in your marketplace is added as a collaborator and linked to their products. When a customer purchases a product, Siren checks which vendor owns it and records the engagement.

The “every binding wins” resolver is what makes this work for marketplaces. Unlike resolvers that pick a single winner per transaction, this one pays every collaborator who has a qualifying engagement. If a customer’s cart contains items from three different vendors, all three earn their 70% cut on their respective sales. No vendor is excluded because another vendor’s product was also in the cart.

The 70/30 split is a common marketplace default. The vendor keeps the majority because they supply the product, handle fulfillment, and bear inventory risk. The platform keeps 30% for providing the storefront, customer acquisition, and infrastructure. You can adjust this split when applying the recipe or change it later in the program settings.

Commissions are calculated on line item totals only. Shipping, taxes, and fees are excluded, giving you a clean cost structure that vendors can understand and predict.

{
  "version": 1,
  "name": "Marketplace Vendor Commission",
  "description": "A multi-vendor marketplace commission program. Every vendor earns 70% of their product sales independently.",
  "programs": {
    "vendor": {
      "name": "Vendor Commission Program",
      "description": "Earn 70% of every sale of your products on the marketplace.",
      "incentiveType": "saleTransactionPercentage",
      "incentiveResolverType": "EveryBindingWins",
      "units": "USD",
      "status": "active",
      "incentiveAmount": 70,
      "engagementTypes": [
        { "type": "collaboratorProductSold", "value": 100.0 }
      ],
      "transactionCompilers": ["includeLineItems"]
    }
  }
}