&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;RelistItemRequest xmlns="urn:ebay:apis:eBLBaseComponents"&gt;
  &lt;RequesterCredentials&gt;
    &lt;eBayAuthToken&gt;ABC...123&lt;/eBayAuthToken&gt;
  &lt;/RequesterCredentials&gt;
  &lt;ErrorLanguage&gt;en_US&lt;/ErrorLanguage&gt;
  &lt;Item&gt;
    &lt;ItemID&gt;110030374491&lt;/ItemID&gt;
    &lt;<b>BuyItNowPrice&gt;15.0&lt;/BuyItNowPrice</b>&gt;
  &lt;/Item&gt;
&lt;/RelistItemRequest&gt;
