As for the Inventory Expiration Report, this is still recorded as an improvement. This is documented in Enhancement 44650.
Ther is no standard report for the same.
As a workaround, please follow the following SuiteAnswers articles:
https://netsuite.custhelp.com/app/answers/detail/a_id/75940
https://netsuite.custhelp.com/app/answers/detail/a_id/73370