Serial No logic for Expense Destination transactions

 Hi Folks,

There is no functionality to validate Serial Numbers for Expense Destination transactions because the Serial Numbers are not tracked in Inventory (mtl_serial_numbers table) 

Enhancement Request <> (SERIAL VALIDATION REQUIRED FOR INSTALL BASE EXPENSE ITEMS) was logged for this issue. Please monitor the Enhancement Request using My Oracle Support.

Could some one explain why serial no logic is different between Inventory detsination and Expense destination, please explain the logic.