Diagnosis
The Multi-Level Goods Receipt function assumes that the door (
unloading zone)
is hierarchically superior to the staging area (
unloading point)
groups several staging areas
You infringe this relationship when you assign only one staging area toa door.

Procedure
RESET N1
Create the entry.
Assign more than one staging area to the door (in the Customizingactivity Define material staging areas
).