TCG Mark does not currently offer a seller-facing feature to manually enable free shipping for marketplace orders.
What sellers can control today
Shipping is primarily determined by the platform's checkout and shipping logic. Sellers can still influence the total value a buyer sees by:
Pricing listings competitively
Combining more cards into one seller package when buyers order multiple items from the same seller
Shipping quickly and reliably once the order is placed
What this means in practice
If you are looking for a setting like "offer free shipping," "free shipping over X," or "set shipping to $0," there is not currently a self-service control for that in the seller dashboard. Shipping costs are calculated by the platform at checkout.
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