title: Using Amazon Product Advertising API to get special "Sale" price
body: <p>I have been successfully using the Amazon Product Advertising API to get nearly all data I need until I ran into this product and problem.</p>
  
  <p>Most products when viewed on amazon display price list this</p>
  
  <pre><code>List Price:     $89.99
  Price:  $81.10 &amp; FREE Shipping. Details 
  </code></pre>
  
  <p>I am able to put this pricing info with the API using ItemLookukp and a few different ResponseGroups.</p>
  
  <p>But, In very few cases like this item</p>
  
  <p><a href="https://rads.stackoverflow.com/amzn/click/com/B003BNZRY2" rel="nofollow noreferrer" rel="nofollow noreferrer">http://www.amazon.com/dp/B003BNZRY2/</a></p>
  
  <p>I see a Sale price as viewed from amazon website.</p>
  
  <pre><code>Safe T Sleep Classic Sleepwrap Baby Swaddle For Bassinets, Cribs and Single Beds
  by Safe T Sleep
  30 customer reviews
  Price:  $133.99
  Sale:   $99.99 &amp; FREE Shipping. FREE Returns. Details
  You Save:   $34.00 (25%) 
  </code></pre>
  
  <p>...and there is no sign of this sale price in the data returned from the API.  Below is part of the reponse I usually get pricing info from in the "Offers"  ResponseGroup.</p>
  
  <pre><code>[Offers] =&gt; ZendService\Amazon\OfferSet Object
      (
          [LowestNewPrice] =&gt; 9449
          [LowestNewPriceCurrency] =&gt; USD
          [LowestUsedPrice] =&gt; 
          [LowestUsedPriceCurrency] =&gt; 
          [TotalNew] =&gt; 3
          [TotalUsed] =&gt; 0
          [TotalCollectible] =&gt; 0
          [TotalRefurbished] =&gt; 0
          [Offers] =&gt; Array
              (
                  [0] =&gt; ZendService\Amazon\Offer Object
                      (
                          [MerchantId] =&gt; 
                          [MerchantName] =&gt; 
                          [GlancePage] =&gt; 
                          [Condition] =&gt; New
                          [OfferListingId] =&gt; 
                          [Price] =&gt; 13399
                          [CurrencyCode] =&gt; USD
                          [Availability] =&gt; Usually ships in 24 hours
                          [IsEligibleForSuperSaverShipping] =&gt; 1
                      )
  
              )
  
      )
  </code></pre>
  
  <p>94.49 or 9449 is actually the lowest new price but does not include free shipping. 
  The API response says the lowest free shipping price is at 133.99 which is NOT actually true.</p>
  
  <p>The lowest free shipping price is the sale price which is $99.99 which is what I want.
  But the $99.99 Sale Price is no where to be found in any of the ReponseGroups.</p>
  
  <p>I am using the itemlookup and looking up but ASIN.  In this case this ASIN is B003BNZRY2</p>
  
  <p>Is it possible to get the "Sale" price using the API?  If so, how and where do I find it?
  I've looked through responses of every related ResponseGroup and can't find it.</p>
  
  <p>Thanks for any answers.</p>