Hi Ravindran,
Please find below the customization which system checks at the time of reversal
Against the movement indicator B which is for purchase order Reversal movement type mentained as 102 in IM
Assignment with WM it is maintained as 601.
As far as Configuration are concern You can see here that IM reversal movement type 102 is mapped with WM movement type 601
Once the above configuration is done then system goes to
LE--WM---ACTIVITIES--TRANSFER -- DEFINE MOVEMENT TYPE and picks the storage type and storage bin from that movement type detail screen,
If the above configuration are in place and still you are having the issue then could you please share WM detail tab of the martial document created as a part of Reversal using VL09. Below mentioned picture will guide you to find the detail which i am requesting you to share
