title: "position" property required for ItemList with Product list items?
body: <p>I have a problem: Google’s Structured Data Testing Tool gives me an error:</p>
  <blockquote>
  <p>Tag <code>position</code> doesn't exist. It's required.</p>
  <p><a href="https://i.stack.imgur.com/nvRDw.png" rel="noreferrer"><img src="https://i.stack.imgur.com/nvRDw.png" alt="Tag position doesn't exist" /></a></p>
  </blockquote>
  <p>I add it to the markup. Than I get this error:</p>
  <blockquote>
  <p><code>Position</code> property is not valid for an object of type <code>Product</code></p>
  <p><a href="https://i.stack.imgur.com/3CfGI.png" rel="noreferrer"><img src="https://i.stack.imgur.com/3CfGI.png" alt="Position property is not valid for an object of type Product" /></a></p>
  </blockquote>
  <p>Here is my markup:</p>
  <pre class="lang-html prettyprint-override"><code>&lt;table id=&quot;sale_table&quot; itemscope=&quot;&quot; itemtype=&quot;http://schema.org/ItemList&quot;&gt;
      &lt;tbody&gt;
              &lt;tr itemprop=&quot;itemListElement&quot; itemscope=&quot;&quot; itemtype=&quot;http://schema.org/Product&quot;&gt;
                  &lt;td class=&quot;sale_art_td&quot; itemprop=&quot;productID&quot;&gt;10496278&lt;/td&gt;
                  &lt;td class=&quot;sale_brand_td&quot; itemprop=&quot;brand&quot;&gt;&lt;span itemprop=&quot;name &quot;&gt;--&lt;/span&gt;&lt;/td&gt;
                  &lt;td class=&quot;sale_name_td&quot; itemprop=&quot;name&quot;&gt;10496278 / Крышка трамблера Daewoo Nexia,Espero DD&lt;/td&gt;
                  &lt;td class=&quot;sale_am_td&quot;&gt;1.00&lt;/td&gt;
                  &lt;td class=&quot;sale_price_td&quot; itemprop=&quot;offers&quot; itemscope=&quot;&quot; itemtype=&quot;http://schema.org/Offer&quot;&gt;&lt;meta itemprop=&quot;priceCurrency&quot; content=&quot;RUR&quot;&gt;&lt;span itemprop=&quot;price&quot;&gt;341.50&lt;/span&gt;&lt;/td&gt;
                  &lt;td class=&quot;sale_buy_td&quot;&gt;&lt;a href=&quot;javascript:void(0);&quot; class=&quot;sale_buy_link&quot; data-id=&quot;63455914&quot; data-query=&quot;10496278&quot;&gt;Купить&lt;/a&gt;&lt;!--&lt;img src=&quot;/upload/badge/sale_cart.png&quot; /&gt;--&gt;&lt;/td&gt;
                  &lt;td class=&quot;hidden&quot;&gt;
                      &lt;meta itemprop=&quot;url&quot; content=&quot;/partsearch/?q=10496278&quot;&gt;
                                          &lt;span itemprop=&quot;description&quot;&gt;Распродажа: 10496278 / Крышка трамблера Daewoo Nexia,Espero DD по цене 341.50&lt;/span&gt;
                  &lt;/td&gt;
              &lt;/tr&gt;
                      &lt;tr itemprop=&quot;itemListElement&quot; itemscope=&quot;&quot; itemtype=&quot;http://schema.org/Product&quot;&gt;
                  &lt;td class=&quot;sale_art_td&quot; itemprop=&quot;productID&quot;&gt;76202sx0a12&lt;/td&gt;
                  &lt;td class=&quot;sale_brand_td&quot; itemprop=&quot;brand&quot;&gt;&lt;span itemprop=&quot;name &quot;&gt;HONDA&lt;/span&gt;&lt;/td&gt;
                  &lt;td class=&quot;sale_name_td&quot; itemprop=&quot;name&quot;&gt;76202SX0A12&lt;/td&gt;
                  &lt;td class=&quot;sale_am_td&quot;&gt;1.00&lt;/td&gt;
                  &lt;td class=&quot;sale_price_td&quot; itemprop=&quot;offers&quot; itemscope=&quot;&quot; itemtype=&quot;http://schema.org/Offer&quot;&gt;&lt;meta itemprop=&quot;priceCurrency&quot; content=&quot;RUR&quot;&gt;&lt;span itemprop=&quot;price&quot;&gt;704.00&lt;/span&gt;&lt;/td&gt;
                  &lt;td class=&quot;sale_buy_td&quot;&gt;&lt;a href=&quot;javascript:void(0);&quot; class=&quot;sale_buy_link&quot; data-id=&quot;63456060&quot; data-query=&quot;76202sx0a12&quot;&gt;Купить&lt;/a&gt;&lt;!--&lt;img src=&quot;/upload/badge/sale_cart.png&quot; /&gt;--&gt;&lt;/td&gt;
                  &lt;td class=&quot;hidden&quot;&gt;
                      &lt;meta itemprop=&quot;url&quot; content=&quot;/partsearch/?q=76202sx0a12&quot;&gt;
                                          &lt;span itemprop=&quot;description&quot;&gt;Распродажа: 76202SX0A12 по цене 704.00&lt;/span&gt;
                  &lt;/td&gt;
              &lt;/tr&gt;
      &lt;/tbody&gt;
   &lt;/table&gt; 
  </code></pre>