Hi Ankush,
I had the same problem. I solved this issue by setting up proper "Goods Movement Bin Determination" in Inbound Delivery.
Goods Movement Bin in Inbound Delivery –Item level should be determined automatically.
Then system sets the source storage type as 9030 or 9010 (to which the Goods movement bin belongs to) and accordingly it searches for the destination bin for next step in POSC. All these should be automatic.
For this, you can set the WPT – source storage type and source storage bin (example- 9030 + Door_bin)
In POSC settings, make sure for your VAS step, the source storage type is either 9030 (because Goods movement bin is from 9030) or empty.
Regards,
Shashidhar