Hello there, in NS what table can i use to get the Inventory details any suggestion? Thanks.

please explain what you mean by inventory detail? not being pedantic, just need to clarify so I can answer. NS does use the phrase "Inventory Detail" for specific serials or there is "inventory details" which could be anything on the item record.

i create report for Return Authorization in NS and some details that i need is there at Inventory details base on the UI of NS

On the RA search, Criteria Main Line = False, Results add it via the joined table "item Number Fields" Number.