title: Finding the Total Available and Available physical for an Item/Warehouse
body: <p>I have a method for a display field which does the following;</p>
  
  <pre><code>return InventSum::find(_salesLine.ItemId, InventDim::_salesLine.InventDimId).AvailPhysical();
  </code></pre>
  
  <p>This gives me the on-hand Available Physical for the line site/warehouse/location.</p>
  
  <p>I need to see the total available for just the site/warehouse. I think I need to search inventDim by Item/Warehouse to get my inventdimid, but I cannot find the method so I am suspicious that this is incorrect.</p>
  
  <p>Can anyone help?</p>