If you add a custom criteria selecting Manufacturer, you should see Manufacturer and Model appear on the right. Check the boxes for one or both and click OK. 

Then choose the drop-down for Custom Criteria once more and your selections should now appear in the list.

I don't have "Manufacturer" as an option??

See screen shot:

I don't have "Manufacturer" as an option either.

Scott

Anyone have any ideas as to why we are not seeing "Manufacturer" as an option under DataClasses ???

Thank you

Please check this link

https://www-secure.symantec.com/connect/forums/missing-cmdb-data-classes#comment-5312341

Credits to Mike Clemson.

I am still unclear on how to resolve this issue. Can anyone summarize what I need to do to make this work correctly?

Thank you

You will need to run the Inventory to asset synchronization task (Manage > Jobs and Tasks > System Jobs and Tasks > Service and Asset Management > CMDB) on client machines that you want to get the manufacturer info populated.

I do not see "Service and Asset Management", see snapshot: