Exception handling is used to handle exceptions occurring in Planned and Actual warehouse options 

1	Outbound delivery created in EWM with products to be delivered to Customer
2	Warehouse tasks are created and assigned to warehouse worker to pick and move to staging area
3	During Picking from the source bin, warehouser worker notices quantity shortage/damage, worker uses exception handling to capture the difference.

Error message : Changing destination data only allowed with corresponding exception code 

Step 1.	Create Exception Code or use Standard Code
IMG	SCM-EWM-Cross-Process Settings-Exception Handling-Define Exception Codes

During Picking from the source bin, warehouser worker notices BIN damage, worker uses exception handling to change BIN.