Hi Malay,
Can You please send me the steps what you have followed to create this one, So that I can help you in this issue..
I tried slotting & Rearrangement, for me it is working fine.
By observing your screen shot I got to know system is not finding any Optimized Storage type / Section..
In some cases if you miss this step also we will get same issue :
Extended Warehouse Management --> Internal Warehouse Processes
--> Warehouse Optimization --> Specify Default Warehouse Process Type for Rearrangement
For the Warehouse / DTR-3020 we need to give "CtDestSts" as " Transfer stock to Global "
Thanks
Ramesh