Hi Jacek,
you can check the movements in /SCWM/MON. The HU you've to enter in /SCWM/CANCPICK is the destination HU of the picking WT. The document number is the number of the outbound delivery order.
The process is
Select item to be cancelled
Press the button to release the stock
now you should be avle to pick again.
best regards,
Christian
