redfish SerialNumber for Dell iDRAC

Hi,

For Dell servers, the Service Tag is used in place of Serial Number for all auto-discovery systems.  However, the redfish API reports a completely different number under /redfish/v1//Systems/System.Embedded.1  The Dell Service tag is under "SKU". It would be great if we could use this instead of the reported "SerialNumber". 

It doesn't seem matter if I select "Board Serial" or "Product Serial" under "Serial to use".  
"Dell Asset Tag" would be a nice option :)