Non inventoriable expensed item

Hello,

We are using AX 2009. For items that are expensed but are not directly related to production such as office supplies etc. As soon as the purchase order is received, it is consumed type of item.

What would be the recommended Item Type to be used for this type of item in AX 2009 out of Item Type - ITEM, BOM, Service. I am thinking to use ITEM TYPE as Service.

Can someone suggest me for the best way???

Thanks

Yes it would be Service