Merchants with stores designed using store tags must ensure that both vwitem and vwquantity fields are present, in order for the Floating Cart and Mini-Cart to correctly function. Merchants using store tag modules must manually edit the module code to include the vwitem field.
The following form example shows the vwitem field added to a form. As you refer to the example below, please note that your_item_id is an example item ID, and must be replaced with the actual item ID as assigned in Catalog Manager.
<form method="post" action="<!--#ystore_order id="your_item_id" -->">
<input type="hidden" value=your_item_id name="vwitem"/>
<input type="submit" value="Order Item <!--#ystore_catalog id="your_item_id" field="name" -->">
</form>
The example below shows the end result of a form that includes both the required vwitem and vwquantity fields:
<form method="post" action="http://[order-post-url]">
<input type="hidden" name="vwquantity" value="1" />
<input type="hidden" name="vwprice" value="8.99" />
<input type="hidden" name="vwitem" value="myitem108" />
<input type="submit" value="Order" />
</form>