[itsm] Unable to add new CMDB class Please help

Hi, I am adding 1) A new Catalog Item to ITSM::ConfigItem::Class example Vendors 2) Then in config item I am changing the class defination (for testing purpose I am copying Computer class defination to vendor class defination). Problem is After doing all this the new vendor class must be displayed in CMDB-->New list class but it is not showing the new class Item vendor htere. Please help Thanks