SAP Message VL460 - Items were deleted, even though picking has already taken place

Diagnosis
You have deleted individual items in the delivery. However, pickingand/ or putaway for this delivery document has already begun in thedecentralized Warehouse Management System.

System Response
Deleting items requires additional activities in the warehouse, due tothe return of previously staged goods.
According to the default system settings, the system rejects the changeor outputs a message.

Procedure
Inform your system administrator if this message appears incorrectly.

Procedure for System Administration
You can control the attributes of this message in Customizing. To dothis, choose the activity
Specify Characteristics of System Messages in Customizing forShipping.