Free shipping (eBay US marketplace only)

When adding or revising a listing, setting Item.ShippingDetails.ShippingServiceOption.FreeShipping to true indicates that the cost of shipping for the first domestic shipping service (i.e., flat rate or calculated shipping,) is zero.

This applies to the AddItem family of calls. This element is also returned by GetItem and GetItemShipping if the first domestic shipping service was marked as FreeShipping.

Note: If Item.ConditionID is set to 2000 — Certified - Refurbished — you must offer a free shipping option.

For the first domestic shipping service, set:

Item.ShippingDetails.ShippingServiceOption.FreeShipping to true (or 1) and
Item.ShippingDetails.ShippingServiceOptions.ShippingServiceCost to 0.0