To find a list ID, use one of the following response groups with
ListSearch
ListFull
Listinfo
ListItems
ListmaniaLists
ListMinimum
For example,
http://ecs.amazonaws.com/onca/xml? Service=AWSECommerceService& AWSAccessKeyId=[AWS Access Key ID]& Operation=ListSearch& ListType=WishList& Name=John%20Smith& ResponseGroup=ListInfo
The following is a snippet from the response to this request: The list ID is returned on the second line. The response also shows how the list ID is part of the list's URL, as shown in the value of the ListURL element.
<List>
<ListId>BR4444442H77</ListId>
<ListURL>
http://www.amazon.com/gp/registry/BR4444442H77
</ListURL>
<ListType>WishList</ListType>
<TotalItems>70</TotalItems>
<TotalPages>7</TotalPages>
<DateCreated>1999-10-06</DateCreated>
<CustomerName>John Smith</CustomerName>
</List>