Enabling Bin Locations 
SAP Business One lets you enable the bin location function for individual warehouses.
Note
If you have not enabled bin locations for any warehouse, you cannot access bin location-related menus or windows.
After you have enabled bin locations for a warehouse, you can find bin location-related menu entries in the following paths from the SAP Business One Main Menu:
Administration 
Setup Inventory Bin Locations 
- Inventory Bin Locations
Procedure
From the SAP Business One Main Menu, choose
Administration Setup Inventory Warehouses .The Warehouses – Setup window opens.
Find the warehouse for which you want to enable bin locations.
On the General tab of the Warehouses – Setup window, select the Enable Bin Locations checkbox.
After you select the checkbox, a new Bin Locations tab becomes available where you can define some initial settings.