Amazon Product Advertising API Developer's Manual page 176

Product Advertising API Developer Guide
Name
AssociateTag
CartId
HMAC
Item
Items
MergeCart
CartAdd
Description
Specifies the Associate who is making the request. An
Associate tag, also known as an Associate ID, is an
automatically generated unique identifier. When you log
in to the Amazon Associates website for your locale, the
page that you are directed to includes a message that
says "Signed in as" followed by your Associate tag.
The Associate tag that you used to create a cart must
also be used on all other operations associated with the
same cart.
Type: String
Default: None
Valid Value: The same Associate tag that was used in
the related CartCreate request.
Constraint:
Alphanumeric token returned by
identifies a cart.
Type: String
Default: None
Valid Values: Value returned by CartCreate .
The Hash Message Authentication Code is an encrypted
alphanumeric token that is used to authenticate requests.
Type: String
Default: None
Valid Values: Value is calculated using request
parameters, their values, a cryptographic function, and
the Secret Key, which acts as the "key" for the function.
Container for ASIN or OfferListingId , and Quantity .
This is a SOAP only parameter.
Valid Values: An ASIN or an OfferListingId is
required.
Container for one or more Item (s). This is a SOAP only
parameter.
Valid Values: Item
This parameter is deprecated. When a customer
purchases items in a remote shopping cart, the items are
added to the customer's Amazon retail shopping cart.
API Version 2011-08-01
169
Required
Yes
CartCreate (p. 175) that Yes
Yes
Yes (SOAP
only)
Yes (SOAP
only)
Deprecated