Release: Amazon E-Commerce Service on 2007-01-17

Release Notes>Product Advertising API>Release: Amazon E Commerce Service on 2007 01 17
This release introduces several new features including support for the new 13-digit ISBN values and two new search indices in the US locale: All and Industrial.

Details

Submitted By: Craig@AWS
Created On: January 17, 2007 7:20 PM GMT
Last Updated: January 18, 2007 5:55 PM GMT

These release notes provide a summary of all New Features, Resolved Issues, and Known Issues in the latest version of Amazon E-Commerce Service. For changes made in previous versions, go to http://aws.amazon.com/resources.

Release Date: 2007-01-17
Latest WSDL/API Version: 2007-01-15

New Features

The following table describes the new features found in this release.

Applies
To

Feature
Description
US X

A new search index, Industrial, has been added to the US locale.

This search index limits results to items that are industrial in nature.
CA  
DE  
FR  
JP  
UK  
US X

A new search index, All, has been added to the US locale.

The All search index enables ItemSearch to search through all search indices. The only parameter that you can use in the same ItemSearch request is Keywords. You cannot, for example, use a sort parameter. Only the first five pages of results are returned. Each page has up to ten results. The All search index does not work with ItemLookup.
CA  
DE  
FR  
JP  
UK  
US X

A new IdType, ISBN, now works with ItemLookup when the search index is Books or ForeignBooks.

The ISBN IdType enables you to enter 13-digit ISBN book identifiers. The corresponding ItemId in the ItemLookup request, then, must be the ISBN number of a book and the search index is Books. If the book is non-US, use the ForeignBooks search index instead. Make sure the ISBN value does not contain hyphens.
CA X
DE X
FR X
JP X
UK X

Resolved Issues

The following table describes the issues resolved in the latest release of ECS.

Applies
To

Issue
Resolution
US  

In the DE locale, the Toy search index used the sort parameter +salesrank instead of salesrank, which is used by all other search indices.



The sort parameter, +salesrank, worked correctly. None of the other search indices, however, used +salesrank. Instead, they used salesrank. This inconsistency sometimes caused confusion. Now, the sort values salesrank and +salesrank work as expected and are funtionally equivalent.

CA  
DE X
FR  
JP  
UK  
US X

In some cases, the Cart response group did not return a value for SellerNickname.

SellerNickname values are now returned for merchants and sellers.

CA X
DE X
FR X
JP X
UK X
US X

Location information was missing in CustomerContentLookup and SellerLookup responses.



A previous resolved issue inadvertantly prevented location information from being returned in CustomerContentLookup and SellerLookup responses. This problem has been resolved. The location information is now returned.

CA X
DE X
FR X
JP X
UK X
US X

Previously, results that exceeded 100,000 items returned the inaccurate error message, "We did not find any matches for your request.."



Requests that return more than 100,000 items generate an error message. That message has been improved to read, "Seller list results exceed maximum items. Try narrowing your search."

CA X
DE X
FR X
JP X
UK X
US X

Previously, when a CartCreate request failed, the error message returned was inaccurate, "Your request contains an invalid value for CartId. Please check your CartId and retry your request."



CartCreate requests do not take a CartId. So, the error message does not make sense. The error message has been revised accordingly.


CA X
DE X
FR X
JP X
UK X

Known Issues

The following issues describe irregular behavior seen in ECS 4.0 functionality:

IssueDescriptionImpact
The EAN field does not support ISBN-13 in the JP locale. ISBN numbers have increased to 13 digits. This is larger than it was before. The existing EAN field can hold 13 digits. ItemSearch requests using the EAN field this way, however, return inaccurate results. JP locale ItemSearch requests that use the EAN field for the ISBN number. The workaround is to use the ISBN IdType parameter in an ItemLookup request where the ItemId is an ISBN number of a book. The ISBN value works only with the books search index.
ItemSearch using Browsenodes when the search index is PetSupplies does not work correctly. A search index is required with every ItemSearch request. Results are innaccurate when the Browsenodes parameter is also used in such a request. PetSupplies is a subset of the Kitchen search index, which does return accurate results. The work around is to use the Kitchen search index instead of PetSupplies.
The BrowseNodeLookup operation often returns inaccurate results for top sellers when the browse node in the request is the root node of a category. Browsenode lookup is often used to find the top seller in the browsenode category. When the browsenode is at the top of the category, the top sellers list is innacurate. When trying to find top sellers in a root browse node. The workaround is to use one of the child browse nodes with the TopSellers response group.
Some of the browse node IDs listed in the ECS Developer Guide are out of date. Browse nodes are dynamic and can change during the course of a book's publication. For this reason, you should aways validate a browsenode number before using it. When trying to use browse node IDs for various reasons.
The ListFull and ListInfo response groups sometimes return an incorrect value for TotalItems. The discrepancy arises when the response sometimes includes invalid ASINs as part of the total. Applications trying to use TotalItems programmatically can run into problems.
Images may not be returned if the MerchantId parameter is not specified in a request.

The default value for MerchantId is Amazon. If the item returned is not being sold by Amazon and Amazon has no images for it, the response will not include images without MerchantId being defined. For example, the following request will not return images if the MerchantId parameter is removed.

http://ecs.amazonaws.com/onca/xml?
Service=AWSECommerceService&
Version=2006-06-28&
Operation=ItemLookup&
ContentType=text%2Fxml&
AWSAccessKeyId=[Access Key ID]&
ItemId=B000096KPR&
ResponseGroup=Accessories,EditorialReview,Images,ItemAttributes&
MerchantId=ADG953YR6NRBF

Requests for items not sold by Amazon may be missing images.
Items returned by ItemSearch may have prices that fall outside of the range specified by MaximumPrice and MinimumPrice. The ItemSearch parameters, MaximumPrice and MinimumPrice, should limit the items returned according to the specified price range. Sometimes, items are returned whose prices fall outside of the specified range. ItemSearch requests that use both MaximumPrice and MinimumPrice.
ItemSearch requests based on Actor or Director return the same results. The source data in the database does not distinguish between actors and directors. ItemSearch requests based on Actor or Director.
Salesrank values in the CA and EU locales do not match the values returned by the retail website in those locales. Salesrank values given by ECS and Amazon's retail web site differ from those given, at times, in the CA and EU locales. ItemSearch requests that are sorted by Salesrank.
Not all parent browse nodes are returned by BrowseNodeInfo.

The response group, BrowseNodeInfo, used in BrowseNodeLookup requests returns the child and parent browse nodes of the browse node specified in the request. When a browse node has multiple parents, however, only one of the parent browse nodes is returned in the response. That is why there might be a difference between the ECS response and the result displayed on Amazon’s retail web site. BrowseNodeInfo returns the entire lineage of both child and parent browse nodes. For example, in the following response snippet, the parentage of the browse node in the request, Social Sciences, is traced all the way up the browse node tree to the root browse node, Books. Also, all of the children of the node, Social Sciences, are returned. For the sake of brevity, the following response snippet shows only some of the returned child browse nodes.

<Item>
<ASIN>0131856340</ASIN>
-<BrowseNodes>
  -<BrowseNode>
   <BrowseNodeId>11232</BrowseNodeId>
   <Name> Social Sciences</Name>
     -<Ancestors>
      -<BrowseNode>
      <BrowseNodeId>53</BrowseNodeId>
      <Name>Nonfiction</Name>
      -<Ancestors>
       -<BrowseNode>
       <BrowseNodeId>1000</BrowseNodeId>
       <Name>Subjects</Name>
      -<Ancestors>
        -<BrowseNode>
        <BrowseNodeId>283155</BrowseNodeId>
        <Name>Books</Name>
      </BrowseNode>
    </BrowseNode>
  </BrowseNode>
- <Children>
  - <BrowseNode>
      <BrowseNodeId>11233</BrowseNodeId>
      <Name>Anthropology</Name>
    </BrowseNode>
  - <BrowseNode>
      <BrowseNodeId>11242</BrowseNodeId>
      <Name>Archaeology</Name>
    </BrowseNode>
  - <BrowseNode>
      <BrowseNodeId>3048861</BrowseNodeId>
      <Name>Children's Studies</Name>
    </BrowseNode>
  </Children>
</BrowseNodes>

Notice that all of the nodes in the response show only one parent node, for example, the parent node of Social Sciences is Nonfiction. Only a single parent node would be returned even if a node had multiple parents.

BrowsenodeLookups that attempt to work "up" the browsenode hierarchy.
Items sorted by salesrank are returned out of order. In an ItemSearch request where Sort=salesrank, you would expect the items to be returned in order of their sales rank from best (1) to worst (large number). The sales rank values for items change frequently. The ECS sales rank updates lag behind the sales rank updates on the retail website. So, in an ItemSearch request, although the sales rank numbers are out of order in the ECS response, the items are, in fact, ordered according to the sales rank computed on the retail website. In this way, the sales rank order of items returned by ECS and Amazon’s retail website match. One alternative in the US locale is to use the TopSellers response group to get the top 10 bestsellers. Those items are returned in order. ItemSearch requests that are sorted by Salesrank.
ItemSearch power searches sometimes return different results when the sort parameter is specified versus when it is not specified. Submitting the same request twice, once with and once without the sort parameter, potentially returns different sets of results. ItemSearch power searches.
The parameter, pubdate, which is used in ItemSearch Power searches is not working correctly. This parameter sometimes does not return results for the specified pubdate value when it should. ItemSearch power searches that use pubdate.
Changing access to lists often requires up to twenty-four hours to take effect. Only lists made public by a customer are returned by ListSearch. A customer can change access restrictions on their lists. There is a lag time between that change and the time when others can or cannot (depending on the change in permissions) access that list. Doing ListSearch requests within 24 hours of a change in access permissions.
Relevancy rank does not work with blended searches. Relevancy rank generally corresponds with sales rank. Currently, the relevancy rank using ItemSearch blended searches yields inaccurate results. ItemSearch requests where the SearchIndex is "Blended" and the sort parameter is relevancy.
Updating the availability status of some items takes exceptionally long. There is a lag time incurred for the availability status of an item to be updated. For a few items in each Search Index, however, those lag times are exceptionally long.  These lag times account for inaccurate availability information, even when the ItemSearch parameter, Availability, is set to "Available." To check the true availability of an item, use the Offers Response Group. If an offer is returned for an item, it is truly available. Requests that list the availability of items in the response.
GZIP functionality not working. XML responses are not GZIP'ed, even if the proper Accept-Encoding header is sent with the request. Requests that stipulate a GZIP'ed response.
The total number of pages returned from a search request decreases as you page through the results. To optimize search results, grouping of similar items is not done until the items are viewed. When the items are viewed and the grouping occurs, the page count shrinks. Applications or web sites that make use of the TotalPages element.
Relevancy score values are sometimes unexpected. Relevancy scores are, in part, determined by the number of occurrences of a word. This algorithm can sometimes lead to unexpected results. For example, while you might expect "laptop" to be most relevant to Computers category, the relevancy score is higher in "Sporting Goods" because the word "laptop" occurs there more often, for example, in phrases such as "laptop bag." ItemSearch requests sorted by relevancy.
In cart operations, validation is not performed on ListItemId. Validation is not performed in some cart operations. It is possible, for example, for the ListItemId not to correspond to the ASIN. Adding items to cart from a list using a ListItemId.
MerchantId does not always filter search results. MerchantId is not used in books, music, classical, video, wireless, DVD, communities, wishlists, Target, and all international stores. MerchantId cannot be used as a filter for any of these groups. Doing so might lead to unexpected results, such as items being sold by some merchant other than the one specified by the MerchantId. ItemSearch requests that use MerchantId.
SellerLookup sometimes does not return the Seller Name or correct location. Results from the SellerLookup operation may not return the SellerName element or return the correct Location values. Applications or web sites that use the SellerName or Location values.
ItemLookup does not return some editorial reviews. ItemLookup only returns the editorial reviews written by Amazon.com. Editorial reviews recorded by another web site cannot be included in the reviews returned by ItemLookup.
Feature elements are missing from ItemAttributes. ECS 4.0 does not return the Feature element, which is returned by ECS 3.0, for ItemAttributes. Applications or web sites that use the 3.0 Feature element.
Items returned using the PCHardware search index may not be hardware. Using the PCHardware search index with the ItemSearch operation returns non-hardware items.  
ItemSearch Power requests do not return accurate results for specific dates. ItemSearch responses may be incorrect when the request specifies a specific day. Using date ranges returns expected results. ItemSearch Power requests that specify specific dates.
WishList is returned even when ListType=WeddingRegistry. In ListLookup, when you set ListType to “WeddingRegistry,” the operation returns both a WeddingRegistry and, unexpectedly, a WishList. Both lists are based on the same ListId. When you set ListType to “WishList,” ListLookup only returns a WishList, which is correct. ListLookup requests that set ListType to "WeddingRegistry."
Customer Reviews are not in sync with Amazon's retail website. Customer Reviews returned by search operations may not be in sync with the reviews on Amazon's retail website. Applications that return customer reviews.
ReleaseDate not returned for some items. Some items, such as DVDs, do not have release dates. Sorting by release date, then, sometimes generates spurious results. Applications or web sites that use the ReleaseDate element.

Phrases in quotes used as values for the Keywords parameter in ItemSearch requests do not perform as expected.

Quoted phrases in the Keywords field for ItemSearch are not accepted as a whole phrase. Instead, they are broken up into individual terms and results are returned for subsets of the phrase. For example, the parameter Keywords="the last time" should only return results for "the last time", rather than "the", "last" or "time". ItemSearch requests that use phrases for Keyword values. Instead, use the TextStream parameter.
Default input content encoding is not UTF-8. JP is the only locale that correctly takes UTF8 input. All other locales use LATIN1. Applications dependent on UTF8.
ItemSearch using TextStream may not work for all search indices.

Some search indices, such as, Tools, Software, and Jewelry, do not work in ItemSearch requests using the TextStream parameter.

Applications or web sites that use the TextStream parameter.

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