| Name | Type | Description | Notes |
|---|---|---|---|
| offer_id | string | The unique identifier of an unpublished offer for which expected listing fees will be retrieved. One to 250 <strong>offerId</strong> values can be passed in to the <strong>offers</strong> container for one <strong>getListingFees</strong> call. Errors will occur if <strong>offerId</strong> values representing published offers are passed in. | [optional] |