I got some valuable answers for the error no 838 in bapi customer creation. I have followed these things. but now I am facing another problem when I m debuging the function module BAPI_CUSTOMER_CREATEFROMDAT1.and that is Standard layout used(user-specific layout -> long text)
and the value of the customer number is blank which is of type KUNNR
and the value of return parameter is 000 which is of type BAPIRETURN1.
Thanks and Regards