There might arise a situation where you don't want an item to appear in the list since you no longer sell/purchase that item. Moreover, you cannot delete this item since it is already used in sale/purchase transaction.
Book Keeper provides you the option of marking items as Inactive/Active.
You can follow below steps to mark your Inventory Items as inactive:
1. Go to Inventory Item in main menu.
2. On the top right side you will find 'Active Items' option. You need to select All there.
3. Once you select All, a checkbox appears next to each item name. You can untick/uncheck the items which you want to mark as inactive and it will be saved automatically.
4. Now select Active Items from dropdown, the items that you marked as inactive will not appear in Inventory list.