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Merchants always sell new or collectible items. To purchase items that are used, refurbished, or out of stock in merchant's inventories, you must purchase from sellers.
Sellers also can sell new and collectible items. Customers sometimes like what specific sellers have for sale. For that reason, it is a good idea to enable customers to find items sold by sellers.
The Amazon Associates Web Service operation used to find items sold by sellers is SellerListingSearch. You cannot use this operation to return items sold by merchants. You can ItemSearch to find some items sold by sellers. SellerListingSearch, however, returns far more information about seller's items.
SellerListingSearch enables you to return all of the items sold by a seller. Optionally, you can filter results by specifying the title of an item or its status.
http://ecs.amazonaws.com/onca/xml? Service=AWSECommerceService& AWSAccessKeyId=[AWS Access Key ID]& Operation=SellerListingSearch& SellerId=[A Seller ID]& Keywords=crystal%20ball& Sort=+price
This request returns the crystal balls sold by the specified seller. The results are sorted by price.
Word order in the title does not matter and case is not significant. For example, searching for Crystal%20balls is the same as searching for Balls%20Crystal.
![[Note]](images/note.png) | Note |
|---|---|
Amazon Associates Web Service does not offer an operation that searches for a specific item across all sellers. |
To Find Your Seller ID
Point your web browser at http://www.amazon.com.
Click the Your Account tab.
Your Account web page displays.
Click the Your Seller Account link.
To Find Someone Else's Seller ID
Point your web browser at http://www.amazon.com.
In the Search field, enter a keyword to search for an item sold by a seller.
On the web page that displays the results of the search, click the Used and New link.
Click a seller's name.
In the address field of the browser, a URI is displayed. The seller parameter specifies the Seller ID.
http://www.amazon.com/gp/help/seller/at-a-glance.html/ref=olp_offerlisting_1/103-3016905-4117412?ie=UTF8&asin=0976925524&marketplaceSeller=1&seller=A3657B0KL9ZR59By default, SellerListingSearch retrieves only products that are
available. To search for discontinued, out of stock, or unavailable products,
set the SellerListingSearch parameter, OfferStatus, to "Closed." For example,
if you wanted to see all offers for a video game, you might use a SellerListingSearch request similar to the
following:
http://ecs.amazonaws.com/onca/xml? Service=AWSECommerceService &AWSAccessKeyId=[ID]&Operation=SellerListingSearch&SellerId=[Seller ID]&Title=[GameTitle]&OfferStatus=Closed
A seller has to determine how much to charge for their items. One way to do that is to look at what similar items have sold for in the past. ItemSearch can return similar items
currently for sale. When the seller's item is more like an item that is no longer for sale, the SellerListingSearch operation can be used with OfferStatus equaling "Closed" to return
discontinued items and their prices.
Alternatively, Amazon provides a for-pay service called Amazon Historical Pricing. This service provides historical pricing information for the past three years.
