Overview
When migrating to version 8 of RMA you may notice that your inventory reporting and inventory module access is gone. In 7.5 you had access to the inventory module under Modules> Inventory and inventory reports under Reports> Inventory Reports even when you did not have the branch setup option Use Enhanced Inventory Tracking selected. When you migrate to version 8 without that option selected, we hide all inventory reporting and module access. If you would like to use inventory tracking, you must select Branch Setup> Desktop> Inventory Tracking. Then you will have access to the inventory reports/module again.
Note: If you are no on RM Enterprise or RM Advanced you have to purchase the inventory module. Please contact our accounting team at accounting@advantagers.com
Cause
Migrating to V8 and not having "Use Enhanced Inventory" checked in Branch Setup prior to migration. 
Resolution
Go to Branch Setup> Desktop> and enable Inventory Tracking. You will receive a prompt that states "Warning!: Changing Inventory Tracking will clear all inventory, currently mobile, transit, unposted, damaged, and production warehouses. Do you wish to continue changing the inventory tracking method?" Select Yes.
NOTE: This change will not affect your inventory in your permanent warehouses.
You will now have access to your inventory module and inventory reports 