Salesforce B2C Commerce 24.7 > Merchandising Your Site > Inventory Management > Inventory for Developers

Extend the ProductInventoryRecord Object

You can extend the ProductInventoryRecord object to store more fields.

For example, you can show a special message when the inventory of a particular product drops below its threshold value. There are multiple steps to this process.

See Inventory for Developers.

Extend the ProductInventoryRecord object.
1. Select Administration > Site Development > System Object Types.
2. Select ProductInventoryRecord and click the Attribute Definitions tab.
3. Add the new object attribute.
Add a new message to the components.properties resource file.

Modify availability.isml to analyze and react to the Threshold value.

<isif condition="${availabilityStatus == dw.catalog.ProductAvailabilityModel.AVAILABILITY_STATUS_IN_STOCK}"> 
<span class="isinstock"> ${Resource.msg('components.common-details.005','components',null)}<br/> 
  <isif condition="${inventoryRecord != null && inventoryRecord.stockLevel.available}">
    <isif condition="${inventoryRecord.stockLevel.value <= inventoryRecord.Threshold. value }">
      ${StringUtils. format(Resource.msg('components.custom.001','components',null)) } 
      <isif condition="${inventoryRecord.ATS.available && inventoryRecord.ATS.value >
 inventoryRecord.stockLevel.value}"> ${StringUtils.format(Resource.msg( 'components.common-details.008','components',null))} 
      </isif> 
    </isif> 
  </isif> 
</span>
</isif>