Hi Jasvin
with Philippe setting also assign wh no to business system in same customization.
SPRO + Extended Warehouse Management + Interfaces + ERP Integration + General Settings + Define Business Syst
SPRO in EWM >>Extended warehouse management >> Interfaces >> ERP Integration >> General settings >> Map >> warehouse numbers from ERP system to EWM.
then try to same and post if you have any further issue.
Regards
Suraj