Storage management is used to tracking the Pallet at warehouse level also below functions.
Create homogeneous and mixed storage units
Place materials into storage using an identification (ID) point
Create transfer orders and confirm stock movements for storage units
Transfer whole storage units internally
Add stock to existing storage units
Display the contents of storage units
Print documents to accompany storage units
Plan goods issues, for example, to stage materials in replenishment storage bins in production
If you deactivate then you will miss above functionality.
For deactivation You have to move existing stock to another warehouse.Clear All open TR ,TOs before deactivation.
Also If you want to deactivate storage unit management for a warehouse number, you must first deactivate SU management in each SU-managed storage type associated with that warehouse number.Move the stock with 999 to different location then do your deactivation process.