Yes, one issue is that an order can have sub-orders to many vendors. And also, another issue is that commissions have to be paid in crypto for all payments, not just those done in crypto. Unfortunately all marketplace plugins are a mess, because WooCommerce was never built for this. You can get a multivendor plugin to work and you can get it to work with crypto, but you will always have to disallow certain features or options. It’s complicated 🙂
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