Hi,
I came to know Bapi_Saleorder_Simulate can be used for availability check and update an existing sale order.but there is no sample program explaining the process.I have tried this by passing parameters ORDER_HEADER_IN , ORDER_ITEMS_IN ,ORDER_PARTNERS and ORDER_SCHEDULE_EX(for getting details),also i have assigned the sale document number ,custom document type(ZSO) in ORDER_HEADER_IN . while executing the BAPI I am getting the error external number range is not assigned for the document type ZSO . I am confused on seeing this error. It is possible to do availability check for existing sale order using this BAPI. Please explain how to achieve this.It will be really helpful if it is expalained with an example.
Regards,
Shanmuga