i had searched forum and got some links related to my requirement.
i am trying to create customer with external number which actually comes from the (3rd party system).
i tried creating with SD_CUSTOMER_MAINTAIN_ALL (FM) i tested but its not creating any customer .
if it works fine i can create my own BAPI and use this FM internally but plan doesn't work.
i had tried BAPI_CUSTOMER_CREATEFROMDATA1, BAPI_CUSTOMER_CREATEFROMDATA . this BAPI are not suitable like, i cant give my own customer number .(external number).
please suggest me on this.