Hello Raju,
Maintained the ERP Customer master and EWM Business partner with same no.rang.
and in EWM partner maintain the ID type as CRM002 like below snap.
for Item type error - assign the ERP Delivery type and Item type to EWM delivery tpe and Item type.
u can find this configuration in below menu path
SCM EWM->Interfaces->ERp Integration->Delivery Processing->
Map Item Types from ERP System to EWM
hope it will solve ur issue.
Regards,
Raju